Replaced tabs with spaces in macros

blocks.h

@@ -1,7 +1,7 @@
 /* time interval in seconds to sleep before looking for updates in the main loop */
-#define SLEEPINTERVAL			1
+#define SLEEPINTERVAL                   1
 
-#define PATH(name)			"/home/ashish/.local/projects/dwmblocks/blocks/"name
+#define PATH(name)                      "/home/ashish/.local/projects/dwmblocks/blocks/"name
 
 /* If interval of a block is set to 0, the block will only be updated once at startup.
  * If interval is set to a negative value, the block will never be updated in the main loop.
@@ -12,16 +12,16 @@
 /* pathu - path of the program whose output is to be used for status text
  * pathc - path of the program to be executed on clicks */
 static Block blocks[] = {
-/*	pathu				pathc					interval	signal */
-	{ PATH("time.sh"),		NULL,					30,		10},
+/*      pathu                           pathc                                   interval        signal */
+        { PATH("time.sh"),              NULL,                                   30,             10},
 
-	{ PATH("calendar.sh"),		NULL,					30,		3},
+        { PATH("calendar.sh"),          NULL,                                   30,             3},
 
-	{ PATH("volume.sh"),		PATH("volume_button.sh"),		0,		1},
+        { PATH("volume.sh"),            PATH("volume_button.sh"),               0,              1},
 
-	{ PATH("cpu_temp.sh"),		PATH("cpu_temp_button.sh"),		1,		4},
+        { PATH("cpu_temp.sh"),          PATH("cpu_temp_button.sh"),             1,              4},
 
-	{ PATH("battery.sh"),		PATH("battery_button.sh"),		30,		2},
+        { PATH("battery.sh"),           PATH("battery_button.sh"),              30,             2},
 
         { NULL } /* just to mark the end of the array */
 };

dwmblocks.c

@@ -8,10 +8,10 @@
 #include <unistd.h>
 #include <X11/Xlib.h>
 
-#define CMDLENGTH			25
-#define STTLENGTH			256
-#define NILL				INT_MIN
-#define LOCKFILE			"/tmp/dwmblocks.pid"
+#define CMDLENGTH                       25
+#define STTLENGTH                       256
+#define NILL                            INT_MIN
+#define LOCKFILE                        "/tmp/dwmblocks.pid"
 
 typedef struct {
         char *pathu;

sigdwmblocks.c

@@ -7,7 +7,7 @@
 #include <string.h>
 #include <unistd.h>
 
-#define LOCKFILE			"/tmp/dwmblocks.pid"
+#define LOCKFILE                        "/tmp/dwmblocks.pid"
 
 void
 sendsignal(int signum, union sigval sv)