RFR: Escape quotes in shell code stored in gitconfig.

[John Rose via github.com]

https://bugs.openjdk.java.net/browse/SKARA-99

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Commits:
 - e263791e:	Escape quotes in shell code stored in gitconfig.

Pull request:
https://git.openjdk.java.net/skara/pull/120

Webrev:
https://webrevs.openjdk.java.net/skara/120/webrev.00

Patch:
https://git.openjdk.java.net/skara/pull/120.diff

Fetch command:
git fetch https://git.openjdk.java.net/skara pull/120/head:pull/120