updated for version 7.3.1005
Problem:    Get stuck on regexp "\n*" and on "%s/^\n\+/\r".
Solution:   Fix handling of matching a line break. (idea by Hirohito Higashi)
Added tag v7-3-1005 for changeset 90e9917d4114
updated for version 7.3.1006
Problem:    NFA engine not used for "\_[0-9]".
Solution:   Enable this, fixed in patch 1005.
Added tag v7-3-1006 for changeset 9a2183bd8295
updated for version 7.3.1007
Problem:    Can't build on Minix 3.2.1.
Solution:   Add a condition to an #ifdef. (Gautam Tirumala)
Added tag v7-3-1007 for changeset fba9c0f86f77
updated for version 7.3.1008
Problem:    Test 95 fails on MS-Windows.
Solution:   Set 'nomore'. Change \i to \f.  Change multi-byte character to
	    something that is not matching \i. (Ken Takata)
Added tag v7-3-1008 for changeset 8cb14f59a327
updated for version 7.3.1009
Problem:    Compiler warning for ambiguous else.
Solution:   Add curly braces.
Added tag v7-3-1009 for changeset 57393dc4b811
updated for version 7.3.1010
Problem:    New regexp: adding \Z makes every character match.
Solution:   Only apply ireg_icombine for composing characters.
	    Alsl add missing change from patch 1008. (Ken Takata)
Added tag v7-3-1010 for changeset 36ddcf4cecbc
updated for version 7.3.1011
Problem:    New regexp engine is inefficient with multi-byte characters.
Solution:   Handle a character at a time instead of a byte at a time.  Also
	    make \Z partly work.
Added tag v7-3-1011 for changeset 55bcaa1d2749
updated for version 7.3.1012
Problem:    \Z does not work properly with the new regexp engine.
Solution:   Make \Z work.  Add tests.
Added tag v7-3-1012 for changeset 432a6b8c7d93
updated for version 7.3.1013
Problem:    New regexp logging is a bit messy.
Solution:   Consistently use #defines, add explanatory comment. (Taro Muraoka)
Added tag v7-3-1013 for changeset 1be43c095aff
updated for version 7.3.1014
Problem:    New regexp state dump is hard to read.
Solution:   Make the state dump more pretty. (Taro Muraoka)
Added tag v7-3-1014 for changeset 6a2005efa02b