treewide: auto-convert the simple cases to log_*_errno()

As a followup to 086891e5c1 "log: add an "error" parameter to all
low-level logging calls and intrdouce log_error_errno() as log calls
that take error numbers", use sed to convert the simple cases to use
the new macros:

find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_(debug|info|notice|warning|error|emergency)\("(.*)%s"(.*), strerror\(-([a-zA-Z_]+)\)\);/log_\1_errno(-\4, "\2%m"\3);/'

Multi-line log_*() invocations are not covered.
And we also should add log_unit_*_errno().

Signed-off-by: Anthony G. Basile <blueness@gentoo.org>

src/udev/udev-builtin-keyboard.c

@@ -62,7 +62,7 @@ static int install_force_release(struct udev_device *dev, const unsigned int *re
         log_debug("keyboard: updating force-release list with '%s'", codes);
         ret = udev_device_set_sysattr_value(atkbd, "force_release", codes);
         if (ret < 0)
-                log_error("Error writing force-release attribute: %s", strerror(-ret));
+                log_error_errno(-ret, "Error writing force-release attribute: %m");
         return ret;
 }
 

src/udev/udev-ctrl.c

@@ -216,7 +216,7 @@ struct udev_ctrl_connection *udev_ctrl_get_connection(struct udev_ctrl *uctrl) {
         /* check peer credential of connection */
         r = getpeercred(conn->sock, &ucred);
         if (r < 0) {
-                log_error("unable to receive credentials of ctrl connection: %s", strerror(-r));
+                log_error_errno(-r, "unable to receive credentials of ctrl connection: %m");
                 goto err;
         }
         if (ucred.uid > 0) {

src/udev/udev-node.c

@@ -304,7 +304,7 @@ static int node_permissions_apply(struct udev_device *dev, bool apply,
 
                                 r = mac_selinux_apply(devnode, label);
                                 if (r < 0)
-                                        log_error("SECLABEL: failed to set SELinux label '%s': %s", label, strerror(-r));
+                                        log_error_errno(-r, "SECLABEL: failed to set SELinux label '%s': %m", label);
                                 else
                                         log_debug("SECLABEL: set SELinux label '%s'", label);
 
@@ -313,7 +313,7 @@ static int node_permissions_apply(struct udev_device *dev, bool apply,
 
                                 r = mac_smack_apply(devnode, label);
                                 if (r < 0)
-                                        log_error("SECLABEL: failed to set SMACK label '%s': %s", label, strerror(-r));
+                                        log_error_errno(-r, "SECLABEL: failed to set SMACK label '%s': %m", label);
                                 else
                                         log_debug("SECLABEL: set SMACK label '%s'", label);
 

src/udev/udev-rules.c

@@ -1690,7 +1690,7 @@ struct udev_rules *udev_rules_new(struct udev *udev, int resolve_names) {
 
         r = conf_files_list_strv(&files, ".rules", NULL, rules_dirs);
         if (r < 0) {
-                log_error("failed to enumerate rules files: %s", strerror(-r));
+                log_error_errno(-r, "failed to enumerate rules files: %m");
                 return udev_rules_unref(rules);
         }
 
@@ -2711,7 +2711,7 @@ int udev_rules_apply_static_dev_perms(struct udev_rules *rules) {
                                         strscpyl(tags_dir, sizeof(tags_dir), "/run/udev/static_node-tags/", *t, "/", NULL);
                                         r = mkdir_p(tags_dir, 0755);
                                         if (r < 0) {
-                                                log_error("failed to create %s: %s", tags_dir, strerror(-r));
+                                                log_error_errno(-r, "failed to create %s: %m", tags_dir);
                                                 return r;
                                         }
 

src/udev/udevadm-hwdb.c

@@ -615,7 +615,7 @@ static int adm_hwdb(struct udev *udev, int argc, char *argv[]) {
 
                 err = conf_files_list_strv(&files, ".hwdb", root, conf_file_dirs);
                 if (err < 0) {
-                        log_error("failed to enumerate hwdb files: %s", strerror(-err));
+                        log_error_errno(-err, "failed to enumerate hwdb files: %m");
                         rc = EXIT_FAILURE;
                         goto out;
                 }
@@ -648,7 +648,7 @@ static int adm_hwdb(struct udev *udev, int argc, char *argv[]) {
                 mkdir_parents(hwdb_bin, 0755);
                 err = trie_store(trie, hwdb_bin);
                 if (err < 0) {
-                        log_error("Failure writing database %s: %s", hwdb_bin, strerror(-err));
+                        log_error_errno(-err, "Failure writing database %s: %m", hwdb_bin);
                         rc = EXIT_FAILURE;
                 }
         }

src/udev/udevd.c

@@ -989,7 +989,7 @@ static void kernel_cmdline_options(struct udev *udev) {
 
         r = proc_cmdline(&line);
         if (r < 0) {
-                log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
+                log_warning_errno(-r, "Failed to read /proc/cmdline, ignoring: %m");
                 return;
         }
 
@@ -1161,7 +1161,7 @@ int main(int argc, char *argv[]) {
 
         r = mac_selinux_init("/dev");
         if (r < 0) {
-                log_error("could not initialize labelling: %s", strerror(-r));
+                log_error_errno(-r, "could not initialize labelling: %m");
                 goto exit;
         }
 
@@ -1245,7 +1245,7 @@ int main(int argc, char *argv[]) {
 
         rc = udev_rules_apply_static_dev_perms(rules);
         if (rc < 0)
-                log_error("failed to apply permissions on static device nodes - %s", strerror(-rc));
+                log_error_errno(-rc, "failed to apply permissions on static device nodes - %m");
 
         if (arg_daemonize) {
                 pid_t pid;