tests: unify test-requires

tests/test-requires.t

@@ -1,14 +1,14 b''
-#!/bin/sh
+  $ mkdir t
+  $ cd t
+  $ hg init
+  $ echo a > a
+  $ hg add a
+  $ hg commit -m test -d "1000000 0"
+  $ rm .hg/requires
+  $ hg tip
+  abort: index 00changelog.i unknown format 2!
+  $ echo indoor-pool > .hg/requires
+  $ hg tip
+  abort: requirement 'indoor-pool' not supported!
 
-mkdir t
-cd t
-hg init
-echo a > a
-hg add a
-hg commit -m test -d "1000000 0"
-rm .hg/requires
-hg tip
-echo indoor-pool > .hg/requires
-hg tip
-
-true
+  $ true