gentoo-overlay/app-shells/dash/files/dash-0.5.8.1-dumb-echo.patch

http://bugs.gentoo.org/337329
http://bugs.gentoo.org/527848

there's no requirement for `echo` to support escape sequences. bash, by default,
does not, while dash always does.  POSIX permits either behavior:
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/echo.html

however, since the behavior is not portable, no one should be relying on echo
having any specific behavior.  they should use `printf` when they want an escape
sequence.  it also makes dash smaller & faster to disable this logic entirely.

--- a/src/bltin/printf.c
+++ b/src/bltin/printf.c
@@ -439,34 +444,12 @@
 int
 echocmd(int argc, char **argv)
 {
-	int nonl = 0;
-	struct output *outs = out1;
-
-	if (!*++argv)
-		goto end;
-	if (equal(*argv, "-n")) {
-		nonl = ~nonl;
-		if (!*++argv)
-			goto end;
+	int i;
+	for (i = 1; i < argc; ++i) {
+		outstr(argv[i], out1);
+		if (i < argc - 1)
+			outc(' ', out1);
 	}
-
-	do {
-		int c;
-
-		nonl += conv_escape_str(*argv);
-		outstr(stackblock(), outs);
-		if (nonl > 0)
-			break;
-
-		c = ' ';
-		if (!*++argv) {
-end:
-			if (nonl) {
-				break;
-			}
-			c = '\n';
-		}
-		outc(c, outs);
-	} while (*argv);
+	outc('\n', out1);
 	return 0;
 }