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)
Added tag v7-4-045 for changeset 8ced827b2e8b