format_number_with_delim: simplified

Author: MartinPulec

src/gpujpeg_common.c

@@ -2180,19 +2180,12 @@ format_number_with_delim(size_t num, char* buf, size_t buflen)
         const int tmp = num % 1000;
         num /= 1000;
         if ( num == 0 ) {
-            ptr -= 1;
-            if ( tmp >= 10 ) {
-                ptr -= 1;
-                if ( tmp >= 100 ) {
-                    ptr -= 1;
-                }
-            }
+            char numbuf[4];
+            ptr -= snprintf(numbuf, sizeof numbuf, "%i", tmp);
             if ( ptr < buf ) {
                 snprintf(buf, buflen, "%s", "ERR");
                 return buf;
             }
-            char numbuf[4];
-            snprintf(numbuf, sizeof numbuf, "%i", tmp);
             // NOLINTNEXTLINE(bugprone-not-null-terminated-result): prepending, no null-termination
             memcpy(ptr, numbuf, strlen(numbuf));
             return ptr;