installer/portable/mingit: include the OpenSSL v1.0.2p DLLs

As pointed out in the previous commits: after upgrading to OpenSSL
v1.1.1a, a ton of .exe files won't work because they link to the OpenSSL
v1.0.2p DLLs (which have a different name than the v1.1.1a DLLs).

Until we are certain that we do not have any .exe/.dll files in any of
the packages we use to generate Git for Windows installers, let's just
include both v1.0.2p and v1.1.1a DLLs.

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

Author: dscho

make-file-list.sh

@@ -49,7 +49,12 @@ then
 	UTIL_PACKAGES="$UTIL_PACKAGES tmux libevent"
 fi
 
+this_script_dir="$(cd "$(dirname "$0")")" ||
+die "Could not determine this script's dir"
+
 pacman_list () {
+	cat "$this_script_dir/keep-despite-upgrade.txt" 2>/dev/null
+
 	package_list=$(for arg
 		do
 			pactree -u "$arg"