K 10
svn:author
V 6
fluffy
K 8
svn:date
V 27
2018-07-18T16:41:18.319054Z
K 7
svn:log
V 237
CMake: add TCL/Tk 8.7 as supported versions

Since TCL/Tk 8.7 release hits the ports and allowed to be default versions, teach CMake modules to find its right way

Submitted by:	fluffy
Reviewed by:	tcberner
Differential Revision:	D16320

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