util: introduce fputs_with_space() and make use of it at various places

The call combines outputing a string with prefixing it with a space, optionally. This is useful to shorten the logic
for outputing lists of strings, that are space separated.

1 files changed, 3 insertions, 6 deletions

diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index 723a92b5b8..c10635d202 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -822,12 +822,9 @@ static void print_string_set(FILE *f, const char *field, OrderedSet *s) {
 
         fputs(field, f);
 
-        ORDERED_SET_FOREACH(p, s, i) {
-                if (space)
-                        fputc(' ', f);
-                fputs(p, f);
-                space = true;
-        }
+        ORDERED_SET_FOREACH(p, s, i)
+                fputs_with_space(f, p, NULL, &space);
+
         fputc('\n', f);
 }