Add some more documentation to mergeWordPostings, a=chris

Author Chris Pollett <chris@pollett.org>
Author date 2013-07-15 19:Jul:th
Author local date 2013-07-15 12:Jul:th -0700
Committer Chris Pollett <chris@pollett.org>
Committer date 2013-07-15 19:Jul:th
Committer local date 2013-07-15 12:Jul:th -0700
Commit 390e3dbac21af36b218447df00eb7da2e26be848
Tree f5df67c3fa6333a4480fbedd83768f8c99cbe792
Parent 1b408106c68b48295578c0f7a19c41a318e77736
Add some more documentation to mergeWordPostings, a=chris
Affected files:
lib/index_shard.php
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