[zotonic/zotonic] 7a8338: Remove compile warnings.

[Marc Worrell]

Branch: refs/heads/0.x
Home: https://github.com/zotonic/zotonic
Commit: 7a833860acc7bc6f194efdf32c483bb2eabc47a8
https://github.com/zotonic/zotonic/commit/7a833860acc7bc6f194efdf32c483bb2eabc47a8
Author: Marc Worrell <ma...@worrell.nl>
Date: 2019-01-16 (Wed, 16 Jan 2019)

Changed paths:
M src/support/z_context.erl

Log Message:
-----------
Remove compile warnings.



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