rxgen: avoid an unimportant memory leak in docppline()

If cpp emitted
  # 1234 ""
docppline() would leak a small buffer.  Just free it.
The static analyzer will thank you.

Change-Id: I34ae6e228469a900139375f2a4758855922cf0ef
Reviewed-on: http://gerrit.openafs.org/7871
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Simon Wilkinson <simonxwilkinson@gmail.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

diff --git a/src/rxgen/rpc_scan.c b/src/rxgen/rpc_scan.c
index c406be5..dc3abc0 100644 (file)
--- a/src/rxgen/rpc_scan.c
+++ b/src/rxgen/rpc_scan.c
@@ -517,6 +517,7 @@ docppline(char *line, int *lineno, char **fname)
     *p = 0;
     if (*file == 0) {
        *fname = NULL;
+       free(file);
     } else {
        *fname = file;
     }