make sure static buffers for snprintf(3) are large enough

and cast snprintf return value to (void) where they are

1 files changed, 1 insertions, 1 deletions

diff --git a/eqn.c b/eqn.c
index d2347cb4..5f2546ee 100644
--- a/eqn.c
+++ b/eqn.c
@@ -628,7 +628,7 @@ eqn_box(struct eqn_node *ep, struct eqn_box *last)
 	for (i = 0; i < (int)EQNSYM__MAX; i++)
 		if (EQNSTREQ(&eqnsyms[i].str, start, sz)) {
 			sym[63] = '\0';
-			snprintf(sym, 62, "\\[%s]", eqnsyms[i].sym);
+			(void)snprintf(sym, 62, "\\[%s]", eqnsyms[i].sym);
 			bp->text = mandoc_strdup(sym);
 			return(EQN_OK);
 		}