unbreak vwarn: print ": " before errno message

patch by Strake. this seems to be a regression caused by fixing the
behavior of perror("") to match perror(0) at some point in the past.

diff --git a/src/legacy/err.c b/src/legacy/err.c
index 7b167b3601daaee8f32f29d601349b42050bf2fd..0d6ab5242d9b769b31ced7fcc1a62fd5273a402c 100644 (file)
--- a/src/legacy/err.c
+++ b/src/legacy/err.c
@@ -8,8 +8,11 @@ extern char *__progname;
 void vwarn(const char *fmt, va_list ap)
 {
        fprintf (stderr, "%s: ", __progname);
-       if (fmt) vfprintf(stderr, fmt, ap);
-       perror("");
+       if (fmt) {
+               vfprintf(stderr, fmt, ap);
+               fputs (": ", stderr);
+       }
+       perror(0);
 }
 
 void vwarnx(const char *fmt, va_list ap)