Protect the roff parser from dividing by zero. ok schwarze@

1 files changed, 1 insertions, 0 deletions

diff --git a/read.c b/read.c
index 101c478f..b595a1ae 100644
--- a/read.c
+++ b/read.c
@@ -211,6 +211,7 @@ static	const char * const	mandocerrs[MANDOCERR_MAX] = {
 	"skipping request without numeric argument",
 	"skipping all arguments",
 	"skipping excess arguments",
+	"divide by zero",
 
 	"generic fatal error",