makepkg: abort on missing download agent

makepkg would not abort on a missing download agent due to the
output variable being declared local on the same line as the
function call in the assignment. That would result in strange output
such as:

==> Retrieving Sources...
==> ERROR: There is no agent set up to handle foo URLs. Check /etc/makepkg.conf.
    Aborting...
  -> Downloading foobaz...
/home/arch/code/pacman/scripts/makepkg: line 401: foo://foobaz: No such file or directory
==> ERROR: Failure while downloading foobaz
    Aborting...

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

1 files changed, 2 insertions, 1 deletions

diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index a700d9d0..797b8d78 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -551,7 +551,8 @@ download_sources() {
 		fi
 
 		# find the client we should use for this URL
-		local dlclient=$(get_downloadclient "$url") || exit $?
+		local dlclient
+		dlclient=$(get_downloadclient "$url") || exit $?
 
 		msg2 "$(gettext "Downloading %s...")" "$file"
 		# fix flyspray bug #3289