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().

1 files changed, 2 insertions, 2 deletions

diff --git a/src/journal/cat.c b/src/journal/cat.c
index 627c0624a..955c85b4f 100644
--- a/src/journal/cat.c
+++ b/src/journal/cat.c
@@ -134,7 +134,7 @@ int main(int argc, char *argv[]) {
 
         fd = sd_journal_stream_fd(arg_identifier, arg_priority, arg_level_prefix);
         if (fd < 0) {
-                log_error("Failed to create stream fd: %s", strerror(-fd));
+                log_error_errno(-fd, "Failed to create stream fd: %m");
                 r = fd;
                 goto finish;
         }
@@ -164,7 +164,7 @@ int main(int argc, char *argv[]) {
         if (saved_stderr >= 0)
                 dup3(saved_stderr, STDERR_FILENO, 0);
 
-        log_error("Failed to execute process: %s", strerror(-r));
+        log_error_errno(-r, "Failed to execute process: %m");
 
 finish:
         safe_close(fd);