Add missing strings include for BSD

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3119 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/utils.c b/utils.c
index 49fdf5d..a1ecb13 100755 (executable)
--- a/utils.c
+++ b/utils.c
@@ -10,6 +10,7 @@
  */
 
 #include <ctype.h>
+#include <string.h>
 #include <asterisk/lock.h>
 #include <asterisk/utils.h>