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/hostname-setup.c b/src/core/hostname-setup.c
index f81103a810..72e4c539ef 100644
--- a/src/core/hostname-setup.c
+++ b/src/core/hostname-setup.c
@@ -83,7 +83,7 @@ int hostname_setup(void) {
         }
 
         if (sethostname_idempotent(hn) < 0) {
-                log_warning("Failed to set hostname to <%s>: %m", hn);
+                log_warning_errno(errno, "Failed to set hostname to <%s>: %m", hn);
                 return -errno;
         }