fstab-generator: add comma when removed option is in the middle

xxx,x-systemd.default-timeout=y,zzz was filtered to xxxzzz,
but should be xxx,zzz, of course.

diff --git a/src/shared/generator.c b/src/shared/generator.c
index 5d5b6a0a61cc3b5d30caecd07fc6685fa9e97637..2f9e5954c20d363bb2f29024b95cf6efd9b9e1dd 100644 (file)
--- a/src/shared/generator.c
+++ b/src/shared/generator.c
@@ -125,7 +125,7 @@ int generator_write_timeouts(const char *dir, const char *what, const char *wher
                 char *prefix, *postfix;
 
                 prefix = strndupa(opts, start - opts - (start != opts));
-                postfix = timeout + len + (timeout[len] != '\0');
+                postfix = timeout + len + (start == opts && timeout[len] != '\0');
                 *filtered = strjoin(prefix, *postfix ? postfix : NULL, NULL);
                 if (!*filtered)
                         return log_oom();