Fixup casing

Author: danog

Zend/zend_execute_API.c

@@ -439,10 +439,10 @@ void shutdown_executor(void) /* {{{ */
 #if ZEND_DEBUG
 	bool fast_shutdown = 0;
 #elif defined(__SANITIZE_ADDRESS__)
-	char *forceFastShutdown = getenv("ZEND_FORCE_FAST_SHUTDOWN");
+	char *force_fast_shutdown = getenv("ZEND_FORCE_FAST_SHUTDOWN");
 	bool fast_shutdown = (
 		is_zend_mm()
-		|| (forceFastShutdown && ZEND_ATOL(forceFastShutdown))
+		|| (force_fast_shutdown && ZEND_ATOL(force_fast_shutdown))
 	) && !EG(full_tables_cleanup);
 #else
 	bool fast_shutdown = is_zend_mm() && !EG(full_tables_cleanup);