Tweak formatting of internal error messages.

Was neglecting to print the phrase "Internal error: " before, and for
the duplicate message-ID error it's nice to actually see the duplicate
IDs.

1 files changed, 1 insertions, 0 deletions

diff --git a/database.cc b/database.cc
index b7fb1f1..f01ffa4 100644
--- a/database.cc
+++ b/database.cc
@@ -129,6 +129,7 @@ _internal_error (const char *format, ...)
 
     va_start (va_args, format);
 
+    fprintf (stderr, "Internal error: ");
     vfprintf (stderr, format, va_args);
 
     exit (1);