C: reverse-ramdisk.c: reformat macros

c-programming/experiments/reverse-ramdisk.c

@@ -43,17 +43,17 @@
 #endif
 
 #if defined(DEBUG) || defined(TEST)
-# define DBG_PRINT(...) do { \
-	printf(__VA_ARGS__); \
-	fflush(stdout); \
+# define DBG_PRINT(...) do {                                                  \
+    printf(__VA_ARGS__);                                                      \
+    fflush(stdout);                                                           \
 } while (0)
 #else
 # define DBG_PRINT(...)
 #endif
 
-#define RETREAT(s) do { \
-	perror(s); \
-	exit(EXIT_FAILURE); \
+#define RETREAT(s) do {                                                       \
+    perror(s);                                                                \
+    exit(EXIT_FAILURE);                                                       \
 } while (0)
 
 typedef struct {