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walk: remove unused depth argument from dofile()

--- a/sys/src/cmd/walk.c

+++ b/sys/src/cmd/walk.c

@@ -40,12 +40,10 @@

 }

 void

-dofile(char *path, Dir *f, int pathonly, long depth)

+dofile(char *path, Dir *f, int pathonly)

 {

 	char *p;

-	USED(depth);

-

 	if(

 		(f == dotdir)

 		|| (tflag && ! (f->qid.type & QTTMP))

@@ -115,12 +113,12 @@

 				continue;

 			if(! (f->qid.type & QTDIR)){

 				if(fflag && depth >= mindepth)

-					dofile(path, f, 0, depth);

+					dofile(path, f, 0);

 			} else if(strcmp(f->name, ".") == 0 || strcmp(f->name, "..") == 0){

 				warn(". or .. named file: %s/%s", path, f->name);

 			} else{

 				if(depth+1 > maxdepth){

-					dofile(path, f, 0, depth);

+					dofile(path, f, 0);

 					continue;

 				} else if(path == dotpath){

 					if((file = s_new()) == nil)

@@ -146,7 +144,7 @@

 nodescend:

 	depth--;

 	if(dflag && depth >= mindepth)

-		dofile(path, cf, 0, depth);

+		dofile(path, cf, 0);

 }

 char*

@@ -272,7 +270,7 @@

 		}

 		if((d = dirstat(argv[i])) != nil && ! (d->qid.type & QTDIR)){

 			if(fflag && !seen(d) && mindepth < 1)

-				dofile(argv[i], d, 1, 0);

+				dofile(argv[i], d, 1);

 		} else

 			walk(argv[i], d, 1);

 		free(d);