Use bash, so echo -n will do the right thing.

gvanrossum · gvanrossum · commit f7ec7a81a557 · 2008-01-12T19:47:54.000Z
diff --git a/runtests.sh b/runtests.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 HELP="Usage: ./runtests.py [-h] [-x] [flags] [tests]
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-#!/bin/sh`
	`1`	`+#!/bin/bash`
`2`	`2`
`3`	`3`	`HELP="Usage: ./runtests.py [-h] [-x] [flags] [tests]`
`4`	`4`