portable/installer: make sure that connect.exe is available

The `mingw-w64-connect` package was just built and uploaded for the
first time, long after the Git SDK reached version 1.0.0. So let's just
install it on demand, if needed, before making the list of files to
include into the installer or portable Git.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

make-file-list.sh

@@ -26,6 +26,10 @@ pacman_list () {
 	sed 's/^[^ ]* //'
 }
 
+# Packages that have been added after Git SDK 1.0.0 was released...
+pacman -S --needed --noconfirm mingw-w64-$ARCH-connect >&2 ||
+die "Could not install required packages"
+
 pacman_list mingw-w64-$ARCH-git mingw-w64-$ARCH-git-doc-html \
 	git-extra ncurses mintty vim openssh winpty \
 	sed awk less grep gnupg tar findutils coreutils diffutils \