Problem:    Unused variable.
Solution:   Remove the variable. (closes #10829)

Problem:    Expanding file names fails in directory with more than 255
            entries.
Solution:   Use an int instead of char_u to count. (John Drouhard,
            closes #10818)

Problem:    Cursor positioned wrong with virtual text after the line.
Solution:   Clear cts_with_trailing.

Problem:    Code has more indent than needed.
Solution:   Use continue and return statements. (closes #10824)

Problem:    Cannot build with small features.
Solution:   Add #ifdef.

Problem:    Breakindent test fails.
Solution:   Fix condition.

Problem:    Cannot put virtual text after or below a line.
Solution:   Add "text_align" and "text_wrap" arguments.

Problem:    MS-Windows GUI: cannot use AltGr + Space.
Solution:   Check for VK_MENU instead of VK_LMENU. (Anton Sharonov,
            closes #10820, closes #10753)

Problem:    Tiny chance that creating a backup file fails.
Solution:   Check for EEXIST error. (Ken Takata, closes #10821)

Problem:    No test for what patch 9.0.0155 fixes.
Solution:   Add a test. Fix typos.  (closes #10822)