1bdba01 Auto-sync with upstream branch release/2.27/master

Authored and Committed by fweimer 5 years ago
    Auto-sync with upstream branch release/2.27/master
    
    Upstream commit: 68c1bf80978594388157c62fd2edd467d4e8dfb2
    
    - regexec: Fix off-by-one bug in weight comparison (#1582229)
    - es_BO locale: Change LC_PAPER to en_US (swbz#22996)
    - conform/conformtest.pl: Escape literal braces in regular expressions
    
        
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