radical re-formatting 1/3: Fix spacing

Fixes coding style. Formatting commits suck, incoherent coding style
sucks more.
https://suckless.org/coding_style/

arg.h

@@ -13,7 +13,7 @@ extern char *argv0;
                  		break;                                            \
                  	}                                                         \
                  	for (i_ = 1, argused_ = 0; (*argv)[i_]; i_++) {           \
-                 		switch((*argv)[i_])
+				switch ((*argv)[i_])
 #define ARGEND   		if (argused_) {                                   \
                  			if ((*argv)[i_ + 1]) {                    \
                  				break;                            \
@@ -24,7 +24,7 @@ extern char *argv0;
                  		}                                                 \
                  	}                                                         \
                  }
-#define ARGC()   ((*argv)[i_])
+#define ARGC()    ((*argv)[i_])
 #define ARGF_(x) (((*argv)[i_ + 1]) ? (argused_ = 1, &((*argv)[i_ + 1])) :        \
                   (*(argv + 1))     ? (argused_ = 1, *(argv + 1))        : (x))
 #define EARGF(x) ARGF_(((x), exit(1), (char *)0))

components/battery.c

@@ -226,14 +226,14 @@
 		if (sysctlbyname(BATTERY_STATE, &state, &len, NULL, 0) < 0 || !len)
 			return NULL;
 
-		switch(state) {
-			case 0:
-			case 2:
-				return "+";
-			case 1:
-				return "-";
-			default:
-				return "?";
+		switch (state) {
+		case 0: /* FALLTHROUGH */
+		case 2:
+			return "+";
+		case 1:
+			return "-";
+		default:
+			return "?";
 		}
 	}
 

components/swap.c

@@ -210,7 +210,7 @@
 		kvm_t *kd;
 
 		kd = kvm_openfiles(NULL, "/dev/null", NULL, 0, NULL);
-		if(kd == NULL) {
+		if (kd == NULL) {
 			warn("kvm_openfiles '/dev/null':");
 			return 0;
 		}
@@ -231,7 +231,7 @@
 		struct kvm_swap swap_info[1];
 		long used, total;
 
-		if(!getswapinfo(swap_info, 1))
+		if (!getswapinfo(swap_info, 1))
 			return NULL;
 
 		total = swap_info[0].ksw_total;
@@ -246,7 +246,7 @@
 		struct kvm_swap swap_info[1];
 		long used, total;
 
-		if(!getswapinfo(swap_info, 1))
+		if (!getswapinfo(swap_info, 1))
 			return NULL;
 
 		total = swap_info[0].ksw_total;
@@ -261,7 +261,7 @@
 		struct kvm_swap swap_info[1];
 		long total;
 
-		if(!getswapinfo(swap_info, 1))
+		if (!getswapinfo(swap_info, 1))
 			return NULL;
 
 		total = swap_info[0].ksw_total;
@@ -275,7 +275,7 @@
 		struct kvm_swap swap_info[1];
 		long used;
 
-		if(!getswapinfo(swap_info, 1))
+		if (!getswapinfo(swap_info, 1))
 			return NULL;
 
 		used = swap_info[0].ksw_used;

components/wifi.c

@@ -257,7 +257,7 @@
 		fmt = NULL;
 		len = sizeof(ssid);
 		memset(&ssid, 0, len);
-		if (load_ieee80211req(sockfd, interface, &ssid, IEEE80211_IOC_SSID, &len )) {
+		if (load_ieee80211req(sockfd, interface, &ssid, IEEE80211_IOC_SSID, &len)) {
 			if (len < sizeof(ssid))
 				len += 1;
 			else

slstatus.c

@@ -56,14 +56,14 @@ main(int argc, char *argv[])
 
 	sflag = 0;
 	ARGBEGIN {
-		case '1':
-			done = 1;
-			/* fallthrough */
-		case 's':
-			sflag = 1;
-			break;
-		default:
-			usage();
+	case '1':
+		done = 1;
+		/* FALLTHROUGH */
+	case 's':
+		sflag = 1;
+		break;
+	default:
+		usage();
 	} ARGEND
 
 	if (argc) {