updated for version 7.3.840
Problem:    "\@<!" in regexp does not work correctly with multi-byte
	    characters, especially cp932.
Solution:   Move column to start of multi-byte character. (Yasuhiro Matsumoto)
Added tag v7-3-840 for changeset 1778d51fcbc3
updated for version 7.3.841
Problem:    When a "cond ? one : two" expression has a subscript it is not
	    parsed correctly. (Andy Wokula)
Solution:   Handle a subscript also when the type is unknown. (Christian
	    Brabandt)
Added tag v7-3-841 for changeset b40e6a47ee53
updated for version 7.3.842
Problem:    Compiler warning for signed/unsigned pointer.
Solution:   Add type cast. (Christian Brabandt)
Added tag v7-3-842 for changeset 78321dcaa8e2
updated for version 7.3.843
Problem:    Missing test file changes.
Solution:   Change the tests.
Added tag v7-3-843 for changeset f4960ddda07c