update-vim.sh: fix output of the commit message for dash
treef26209fb67879d3554b18a94a02056dd57372020
-rw-r--r-- 9663 README_gitrepo.txt
-rwxr-xr-x 1628 git-merge-vim-runtime.sh
-rwxr-xr-x 1129 update-vim-runtime.sh
-rwxr-xr-x 2574 update-vim.sh