Jakub Wilk 7aaf5f5330 Fix invalid escape sequences
Fixes:

    hy/cmdline.py:175: DeprecationWarning: invalid escape sequence \_
    tests/lex/test_lex.py:267: DeprecationWarning: invalid escape sequence \s
    tests/compilers/test_compiler.py:45: DeprecationWarning: invalid escape sequence \*

when run against Python 3.6 with warnings enabled.
2017-01-01 00:20:04 +03:00
..
2017-01-01 00:20:04 +03:00
2017-01-01 00:20:04 +03:00
2016-12-29 08:35:54 -08:00
2015-02-28 18:11:42 +10:00
2016-12-29 08:35:54 -08:00
2015-02-28 18:11:42 +10:00