patch 7.4.1980

Problem:    'errorformat' is parsed for every call to ":caddexpr".  Can't add
            to two location lists asynchronously.
Solution:   Keep the previously parsed data when appropriate. (mostly by
            Yegappan Lakshmanan)

patch 7.4.1979

Problem:    Getting value of binary option is wrong. (Kent Sibilev)
Solution:   Fix type cast.  Add a test.

patch 7.4.1978

Problem:    Large file test does not delete its output.
Solution:   Delete the output. Check size properly when possible. (Ken Takata)

patch 7.4.1977

Problem:    With 64 bit changes don't need three calls to sprintf().
Solution:   Simplify the code, use vim_snprintf(). (Ken Takata)

patch 7.4.1976

Problem:    Number variables are not 64 bits while they could be.
Solution:   Add the num64 feature. (Ken Takata)

patch 7.4.1975

Problem:    On MS-Windows large files (> 2Gbyte) cause problems.
Solution:   Use "off_T" instead of "off_t".  Use "stat_T" instead of "struct
            stat".  Use 64 bit system functions if available.  (Ken Takata)

patch 7.4.1974

Problem:    GUI has a problem with some termcodes.
Solution:   Handle negative numbers. (Kazunobu Kuriyama)

patch 7.4.1973

Problem:    On MS-Windows the package directory may be added at the end
            because of forward/backward slash differences. (Matthew
            Desjardins)
Solution:   Ignore slash differences.

patch 7.4.1972

Problem:    On Solaris select() does not work as expected when there is
            typeahead.
Solution:   Add ICANON when sleeping. (Ozaki Kiichi)

patch 7.4.1971

Problem:    It is not easy to see unrecognized error lines below the current
            error position.
Solution:   Add ":clist +count".