test: switch to bash

We are using some bash-specific tricks.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>

test/Makefile

@@ -11,7 +11,7 @@ test: $(T)
 	$(MAKE) clean
 
 $(T):
-	$(SHELL) $@ $(TEST_OPTS)
+	./$@ $(TEST_OPTS)
 
 clean:
 	$(RM) -r 'trash directory'.* test-results

test/bidi.t

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Copyright (c) 2012 Felipe Contreras
 #

test/hg-git.t

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Copyright (c) 2012 Felipe Contreras
 #

test/main.t

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Copyright (c) 2012 Felipe Contreras
 #

test/test-lib.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 : "${SHARNESS_TEST_SRCDIR:=$(cd "$(dirname "${BASH_SOURCE-$0}")" && pwd)}"
 . "$SHARNESS_TEST_SRCDIR"/sharness.sh