Fix problem with 'iskeyword' in CSS syntax.
updated for version 7.4.036
Problem:    NFA engine does not capture group correctly when using \@>. (ZyX)
Solution:   Copy submatches before doing the recursive match.
Added tag v7-4-036 for changeset 90e2f0729a0d
updated for version 7.4.037
Problem:    Using "\ze" in a sub-pattern does not result in the end of the
	    match to be set. (Axel Bender)
Solution:   Copy the end of match position when a recursive match was
	    successful.
Added tag v7-4-037 for changeset c3d379c2a115
updated for version 7.4.038
Problem:    Using "zw" and "zg" when 'spell' is off give a confusing error
	    message. (Gary Johnson)
Solution:   Ignore the error when locating the word.  Explicitly mention what
	    word was added. (Christian Brabandt)
Added tag v7-4-038 for changeset 6daa78b6b99a
updated for version 7.4.039
Problem:    MS-Windows: MSCV10 and earlier can't handle symlinks to a
	    directory properly.
Solution:   Add stat_symlink_aware() and wstat_symlink_aware(). (Ken Takata)
Added tag v7-4-039 for changeset 4dfba3df303c
updated for version 7.4.040
Problem:    Valgrind error on exit when a script-local variable holds a
	    reference to the scope of another script.
Solution:   First clear all variables, then free the scopes. (ZyX)
Added tag v7-4-040 for changeset 8336fd924e05
updated for version 7.4.041
Problem:    Visual selection does not remain after being copied over. (Axel
	    Bender)
Solution:   Move when VIsual_active is reset. (Christian Brabandt)
Added tag v7-4-041 for changeset 408f2a1a953f
updated for version 7.4.042
Problem:    When using ":setlocal" for 'spell' and 'spellang' then :spelldump
	    doesn't work. (Dimitar Dimitrov)
Solution:   Copy the option variables to the new window used to show the dump.
	    (Christian Brabandt)
Added tag v7-4-042 for changeset 70915ede509a
updated for version 7.4.043
Problem:    VMS can't handle long function names.
Solution:   Shorten may_req_ambiguous_character_width. (Samuel Ferencik)
Added tag v7-4-043 for changeset 6d11572e2c8b
updated for version 7.4.044
Problem:    Can't build with old MSVC. (Wang Shoulin)
Solution:   Define OPEN_OH_ARGTYPE instead of using intptr_t directly.
Added tag v7-4-044 for changeset c0e3990aed3f
updated for version 7.4.045
Problem:    substitute() does not work properly when the pattern starts with
	    "\ze".
Solution:   Detect an empty match. (Christian Brabandt)