Get rid of warnings when compiled with -Wformat-security

Change-Id: I01014d78c9e9a17c2010660cbfab28f189867f26
diff --git a/srec/crec/astar.c b/srec/crec/astar.c
index e67eb0d..bad8f3a 100644
--- a/srec/crec/astar.c
+++ b/srec/crec/astar.c
@@ -980,7 +980,7 @@
 {
   int i;
   char buf[32];
-  printf(msg);
+  printf("%s", msg);
   for (i = 0; i < num_parps; i++)
   {
     sprintf(buf, "%.3d ", i);
diff --git a/srec/crec/srec_debug.c b/srec/crec/srec_debug.c
index 1a9f087..1865140 100644
--- a/srec/crec/srec_debug.c
+++ b/srec/crec/srec_debug.c
@@ -65,7 +65,7 @@
 
 void print_fsmnode_token_list(srec* rec, stokenID token_index, char* msg)
 {
-  printf(msg);
+  printf("%s", msg);
   
   while (token_index != MAXftokenID)
   {
@@ -119,7 +119,7 @@
 
 void print_fsmarc_token_list(srec* rec, stokenID token_index, char* msg)
 {
-  printf(msg);
+  printf("%s", msg);
   while (token_index != MAXstokenID)
   {
     fsmarc_token* stoken = &rec->fsmarc_token_array[token_index];