Add 'lsb-release' to makedepends

It is not vital for building the package on Arch Linux, nevertheless tecmake.mak calls
lsb_release binary. So make the binary available to prevent errors like:
make[1]: lsb_release: Command not found
/bin/sh: lsb_release: command not found

1 files changed, 1 insertions, 1 deletions

diff --git a/PKGBUILD b/PKGBUILD
index 2e66219e9033..92a38e20ea48 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -10,7 +10,7 @@ pkgrel=6
 pkgdesc="Toolkit for digital imaging"
 arch=('i686' 'x86_64')
 url="http://www.tecgraf.puc-rio.br/im/"
-makedepends=('lua' 'lua51' 'lua52')
+makedepends=('lsb-release' 'lua' 'lua51' 'lua52')
 license=('MIT')
 source=(
   "http://downloads.sourceforge.net/project/imtoolkit/${pkgver}/Docs%20and%20Sources/im-${pkgver}_Sources.tar.gz"