git-pbchk fails when parent is not origin/master

[Garrett D'Amore]

From illumos-gate, bug 5167:

There is a bug in git-pbchk in that it attempts to pass whitespace to Popen() instead of using an array. Furthermore the splitting logic is busted.

More details in the illumos-gate bug: https://www.illumos.org/issues/5167

[Garrett D'Amore]

fixes #84 git-pbchk fails when parent is not origin/master 5167 git-pbchk fails when parent is not origin/master Reviewed by: Richard Lowe [e-mail]

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