Use apr func


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/httpd-pid-table@544147 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/server/mpm_common.c b/server/mpm_common.c
index 906888d..341f580 100644
--- a/server/mpm_common.c
+++ b/server/mpm_common.c
@@ -98,7 +98,7 @@
 int ap_in_pid_table(pid_t pid) {
     char apid[64];
     const char *spid;
-    snprintf(apid, sizeof(apid), "%" APR_PID_T_FMT, pid);
+    apr_snprintf(apid, sizeof(apid), "%" APR_PID_T_FMT, pid);
     spid = apr_table_get(ap_pid_table, apid);
     if (spid && spid[0] == '1' && spid[1] == '\0')
         return 1;
@@ -112,13 +112,13 @@
 
 void ap_set_pid_table(pid_t pid) {
     char apid[64];
-    snprintf(apid, sizeof(apid), "%" APR_PID_T_FMT, pid);
+    apr_snprintf(apid, sizeof(apid), "%" APR_PID_T_FMT, pid);
     apr_table_set(ap_pid_table, apid, "1");
 }
 
 void ap_unset_pid_table(pid_t pid) {
     char apid[64];
-    snprintf(apid, sizeof(apid), "%" APR_PID_T_FMT, pid);
+    apr_snprintf(apid, sizeof(apid), "%" APR_PID_T_FMT, pid);
     apr_table_unset(ap_pid_table, apid);
 }