(doprnt): Do the right thing for negative size spec.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/doprnt.c b/src/doprnt.c
index 7abe5fa3a6b..303846124f4 100644
--- a/src/doprnt.c
+++ b/src/doprnt.c
@@ -94,11 +94,12 @@ doprnt (buffer, bufsize, format, format_end, nargs, args)
             }
           *string = 0;
           /* Get an idea of how much space we might need.  */
-          size_bound = atoi (&fmtcpy[1]) + 50;
+          size_bound = atoi (&fmtcpy[1]);
 
           /* Avoid pitfall of negative "size" parameter ("%-200d"). */
           if (size_bound < 0)
             size_bound = -size_bound;
+          size_bound += 50;
 
           /* Make sure we have that much.  */
           if (size_bound > size_allocated)