Reduce the verbosity of error messages caused by open(2) failures.

Suggested by and ok jmc@.

2 files changed, 6 insertions, 3 deletions

diff --git a/main.c b/main.c
index c6c92386..73ab9e81 100644
--- a/main.c
+++ b/main.c
@@ -411,14 +411,17 @@ static void
 mmsg(enum mandocerr t, enum mandoclevel lvl,
 		const char *file, int line, int col, const char *msg)
 {
+	const char	*mparse_msg;
 
 	fprintf(stderr, "%s: %s:", progname, file);
 
 	if (line)
 		fprintf(stderr, "%d:%d:", line, col + 1);
 
-	fprintf(stderr, " %s: %s", mparse_strlevel(lvl),
-	    mparse_strerror(t));
+	fprintf(stderr, " %s", mparse_strlevel(lvl));
+
+	if (NULL != (mparse_msg = mparse_strerror(t)))
+		fprintf(stderr, ": %s", mparse_msg);
 
 	if (msg)
 		fprintf(stderr, ": %s", msg);
diff --git a/read.c b/read.c
index 965d354e..3b6242cf 100644
--- a/read.c
+++ b/read.c
@@ -210,7 +210,7 @@ static	const char * const	mandocerrs[MANDOCERR_MAX] = {
 	"static buffer exhausted",
 
 	/* system errors */
-	"cannot open file",
+	NULL,
 	"cannot stat file",
 	"cannot read file",
 };