👷 Set file associations, add missing newline

.vscode/settings.json

@@ -14,5 +14,16 @@
     "usize",
     "vcdiff",
     "xdelta"
-  ]
-}
+  ],
+  "files.associations": {
+    "errno.h": "c",
+    "getopt.h": "c",
+    "stdbool.h": "c",
+    "stdint.h": "c",
+    "stdio.h": "c",
+    "stdlib.h": "c",
+    "string.h": "c",
+    "time.h": "c",
+    "unistd.h": "c"
+  }
+}

src/rateLimiter.c

@@ -4,6 +4,7 @@
 #include <stdio.h>
 #include <time.h>
 #include <unistd.h>
+
 #include "errorAndExit.h"
 #include "rateLimiter.h"
 #include "utils/min.h"