Bump escape_utils to ~> 1.2.0 (#3981)
Bump escape_utils to ~> 1.2.0 (#3981)

There are very few changes between 1.1.x and 1.2.x, and I can't see any
that would indicate this would break anything. It does however fix
https://github.com/github/linguist/issues/3797 and
https://github.com/github/linguist/issues/3649 thus allowing peeps to
install Linguist on Windows using rubyinstaller2.
pchaigno/linguist,pchaigno/linguist,pchaigno/linguist,github/linguist,christop/linguist,JJ/linguist,github/linguist,yyx990803/linguist,erkyrath/linguist,stanhu/linguist,erkyrath/linguist,christop/linguist,yyx990803/linguist,yyx990803/linguist,JJ/linguist,github/linguist,erkyrath/linguist,github/linguist,yyx990803/linguist,sebgod/linguist,sebgod/linguist,sebgod/linguist,stanhu/linguist,stanhu/linguist,stanhu/linguist,sebgod/linguist,erkyrath/linguist,JJ/linguist,pchaigno/linguist,JJ/linguist