*: use ESC define instead of "\033"; use ESC[m instead of ESC[0m

text	   data	    bss	    dec	    hex	filename
 922535	    481	   6832	 929848	  e3038	busybox_old
 922534	    481	   6832	 929847	  e3037	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

procps/watch.c

@@ -37,6 +37,8 @@
 
 #include "libbb.h"
 
+#define ESC "\033"
+
 // procps 2.0.18:
 // watch [-d] [-n seconds]
 //   [--differences[=cumulative]] [--interval=seconds] command
@@ -77,7 +79,7 @@ int watch_main(int argc UNUSED_PARAM, char **argv)
 	header = NULL;
 	while (1) {
 		/* home; clear to the end of screen */
-		printf("\033[H""\033[J");
+		printf(ESC"[H" ESC"[J");
 		if (!(opt & 0x2)) { // no -t
 			const unsigned time_len = sizeof("1234-67-90 23:56:89");