disallow unrecognized string/char escapes#22800

Merged

JeffBezanson merged 1 commit intoJuliaLang:masterfrom stevengj:invalidescapes

Jul 14, 2017

+19-11

Commits on Jul 13, 2017

disallow unrecognized string/char escapes (closes JuliaLang#21284 )
stevengj
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