fixup! mingw: allow git.exe to be used instead of the "Git wrapper"

When building Git via CMake on Windows, the dynamic libraries (`.dll`
files) on which Git's executables depend are copied into the build
directory, because the `.exe` files would not even load otherwise.

The "'MSYSTEM/PATH is adjusted if necessary'" test case of
`t0060-path-utils.sh` wants to copy said `.exe` files, though, and
expects them to run. Therefore, we need to copy the `.dll` files, too,
if there are any.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

t/t0060-path-utils.sh

@@ -566,6 +566,14 @@ test_expect_success MINGW 'MSYSTEM/PATH is adjusted if necessary' '
 		pretend/mingw64/libexec/git-core pretend/usr/bin &&
 	cp "$GIT_EXEC_PATH"/git.exe pretend/mingw64/bin/ &&
 	cp "$GIT_EXEC_PATH"/git.exe pretend/mingw64/libexec/git-core/ &&
+	# copy the .dll files, if any (happens when building via CMake)
+	case "$GIT_EXEC_PATH"/*.dll in
+	*/"*.dll") ;; # no `.dll` files to be copied
+	*)
+		cp "$GIT_EXEC_PATH"/*.dll pretend/mingw64/bin/ &&
+		cp "$GIT_EXEC_PATH"/*.dll pretend/mingw64/libexec/git-core/
+		;;
+	esac &&
 	echo "env | grep MSYSTEM=" | write_script "$HOME"/bin/git-test-home &&
 	echo "echo mingw64" | write_script pretend/mingw64/bin/git-test-bin &&
 	echo "echo usr" | write_script pretend/usr/bin/git-test-bin2 &&