Problem:    Part of file not indented properly.
Solution:   Adjust the indent. (Ken Takata)

Problem:    Recording into a register has focus events. (Michael Naumann)
Solution:   Don't record K_FOCUSGAINED and K_FOCUSLOST. (closes #3143)

Problem:    When a mapping to <Nop> times out the next mapping is skipped.
Solution:   Reset "timedout" when waiting for a character. (Christian
            Brabandt, closes #2921)

Problem:    Repeating put from expression register fails.
Solution:   Re-evaluate the expression register. (Andy Massimino,
            closes #2945)

Problem:    Cannot tell whether a register is being used for executing or
            recording.
Solution:   Add reg_executing() and reg_recording(). (Hirohito Higashi,
            closes #2745)  Rename the global variables for consistency.  Store
            the register name in reg_executing.

Problem:    Various comment updates needed, missing white space.
Solution:   Update comments, add white space.

Problem:    Might use NULL pointer when out of memory. (Coverity)
Solution:   Handle NULL pointer better.

Problem:    No test for 'termwinkey'.
Solution:   Add a test.  Make feedkeys() handle terminal_loop() returning
            before characters are consumed.

Problem:    Various warnings from a static analyser
Solution:   Add type casts, remove unneeded conditions. (Christian Brabandt,
            closes #2770)

Problem:    Flexible array member feature not supported by HP-UX. (John
            Marriott)
Solution:   Do not use the flexible array member feature of C99.