ps: fix build breakage from vda's recent commit

*: whitespace fixes

libbb/compare_string_array.c

@@ -70,9 +70,9 @@ int index_in_substrings(const char *strings, const char *key)
 
 const char *nth_string(const char *strings, int n)
 {
-        while (n) {
-                n--;
-                strings += strlen(strings) + 1;
-        }
-        return strings;
+	while (n) {
+		n--;
+		strings += strlen(strings) + 1;
+	}
+	return strings;
 }

libbb/lineedit.c

@@ -65,7 +65,7 @@
 enum {
 	/* We use int16_t for positions, need to limit line len */
 	MAX_LINELEN = CONFIG_FEATURE_EDITING_MAX_LEN < 0x7ff0
-                      ? CONFIG_FEATURE_EDITING_MAX_LEN
+	              ? CONFIG_FEATURE_EDITING_MAX_LEN
 	              : 0x7ff0
 };
 

libbb/xfuncs.c

@@ -166,7 +166,7 @@ int ndelay_on(int fd)
 
 int close_on_exec_on(int fd)
 {
-        return fcntl(fd, F_SETFD, FD_CLOEXEC);
+	return fcntl(fd, F_SETFD, FD_CLOEXEC);
 }
 
 int ndelay_off(int fd)