test: fix invalid usage of 'type -p'

The vercmptest script needs to be invoked as a bash script for this to
be valid; the -p operator is interpreted as an argument to look up by
sh. This goes way back to commit 3bf9448943dc0b, done to solve
http://mailman.archlinux.org/pipermail/pacman-dev/2008-July/007180.html.

Saw this problem running in a virtual machine where sh is not bash, but
in fact dash:

    user@debian-powerpc:~/projects/pacman$ ./test/util/vercmptest.sh
    src/util/vercmp-p: not found
    src/util/vercmp is src/util/vercmp
    vercmp binary (src/util/vercmp) could not be located

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/test/util/vercmptest.sh b/test/util/vercmptest.sh
index a9ed3b2a..6b3869c5 100755
--- a/test/util/vercmptest.sh
+++ b/test/util/vercmptest.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # vercmptest - a test suite for the vercmp/libalpm program
 #