[MERGE #1132] MicroBuild v2: Fix string formatting in change.txt.
[MERGE #1132] MicroBuild v2: Fix string formatting in change.txt.

Merge pull request #1132 from dilijev:microbuildv2

mrkmarron/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore