treewide: use log_*_errno whenever %m is in the format string

If the format string contains %m, clearly errno must have a meaningful
value, so we might as well use log_*_errno to have ERRNO= logged.

Using:
find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_(debug|info|notice|warning|error|emergency)\((".*%m.*")/log_\1_errno(errno, \2/'

Plus some whitespace, linewrap, and indent adjustments.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/core/load-dropin.c b/src/core/load-dropin.c
index 7a17baaf89..8afaf45fe6 100644
--- a/src/core/load-dropin.c
+++ b/src/core/load-dropin.c
@@ -58,7 +58,7 @@ static int iterate_dir(
                 if (errno == ENOENT)
                         return 0;
 
-                log_error("Failed to open directory %s: %m", path);
+                log_error_errno(errno, "Failed to open directory %s: %m", path);
                 return -errno;
         }