shithub: libvpx

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Fix for version.sh when libvpx is checked out as git submodule

When using git submodules, .git may be a file instead of a directory.
The -d test was failing in that case; switched to -e.

BUG=https://bugs.chromium.org/p/webm/issues/detail?id=1215

Change-Id: Iedf0e92bfeb003b28a415945dc729e6ce58c4fe4

--- a/build/make/version.sh

+++ b/build/make/version.sh

@@ -24,8 +24,9 @@

 id=${3:-VERSION_STRING}

 git_version_id=""

-if [ -d "${source_path}/.git" ]; then

+if [ -e "${source_path}/.git" ]; then

     # Source Path is a git working copy. Check for local modifications.

+    # Note that git submodules may have a file as .git, not a directory.

     export GIT_DIR="${source_path}/.git"

     git_version_id=`git describe --match=v[0-9]* 2>/dev/null`

 fi