add 'sent: ' prefix to errors

diff --git a/sent.c b/sent.c
index 6b22e61aef973f0b3a50468e45e30add4a91e4ee..e717a69c797f65d620063792cc8a839a0d647f82 100644 (file)
--- a/sent.c
+++ b/sent.c
@@ -386,6 +386,8 @@ void eprintf(const char *fmt, ...)
 {
        va_list ap;
 
+       fputs("sent: ", stderr);
+
        va_start(ap, fmt);
        vfprintf(stderr, fmt, ap);
        va_end(ap);