Add qbe identifier in error strings

When qbe is used with other tools is a bit hard to identify
what is the tool that is generating the error. Adding an
identifier at the beginning of the line makes much easier
to identify the tool generating the error.

1 files changed, 1 insertions, 1 deletions

diff --git a/parse.c b/parse.c
index 972c2e2..f681c40 100644
--- a/parse.c
+++ b/parse.c
@@ -142,7 +142,7 @@ err(char *s, ...)
 	va_list ap;
 
 	va_start(ap, s);
-	fprintf(stderr, "%s:%d: ", inpath, lnum);
+	fprintf(stderr, "qbe:%s:%d: ", inpath, lnum);
 	vfprintf(stderr, s, ap);
 	fprintf(stderr, "\n");
 	va_end(ap);