Fixing C coding style mistakes

examples/array_vars/array_vars.c

 // Copyright (c) 2014 Cesanta Software
 // All rights reserved
 //
-// This example demostrates basic use of Mongoose embedded web server.
+// This example demostrates how to use array get variables using mg_get_n_var
 // $Date: 2014-09-09 22:20:23 UTC $
 
 #include <stdio.h>
@@ -15,8 +15,7 @@ static int ev_handler(struct mg_connection *conn, enum mg_event ev) {
     {
       mg_printf_data(conn, "Hello! Requested URI is [%s] ", conn->uri);
       char buffer[1024];
-      int ret,
-        i;
+      int i, ret;
       for(i=0; (ret = mg_get_n_var(conn, "foo[]", buffer, 1024, i)) > 0; i++)
         mg_printf_data(conn, "\nfoo[%d] = %s", i, buffer);
 

mongoose.c

@@ -5001,7 +5001,7 @@ static int get_var(const char *data, size_t data_len, const char *name,
                    char *dst, size_t dst_len, int n) {
   const char *p, *e, *s;
   size_t name_len;
-  int len;
+  int i, len;
 
   if (dst == NULL || dst_len == 0) {
     len = -2;
@@ -5009,12 +5009,12 @@ static int get_var(const char *data, size_t data_len, const char *name,
     len = -1;
     dst[0] = '\0';
   } else {
+    i = 0;
     name_len = strlen(name);
     e = data + data_len;
     len = -1;
     dst[0] = '\0';
 
-    int i = 0;
     // data is "var1=val1&var2=val2...". Find variable first
     for (p = data; p + name_len < e; p++) {
       if ((p == data || p[-1] == '&') && p[name_len] == '=' &&