Problem:    SET_NO_HLSEARCH() used in a wrong way.
Solution:   Make it a function. (suggested by Dominique Pelle,
            closes #2850)

Problem:    With 'incsearch' text may jump up and down. ()
Solution:   Besides w_botline also save and restore w_empty_rows.
            (closes # 2530)

Problem:    Expanding abbreviation doesn't work. (Tooth Pik)
Solution:   Return OK instead of FALSE and FAIL instead of TRUE. (Christian
            Brabandt)

Problem:    CTRL-G j in Insert mode is incorrect when 'virtualedit' is set.
Solution:   Take coladd into account. (Christian Brabandt, closes #2743)

Problem:    Lgtm considers tutor.es to be EcmaScript.
Solution:   Add a config file for lgtm. (Bas van Schaik, closes #2844)

Problem:    :argedit does not reuse an empty unnamed buffer.
Solution:   Add the BLN_CURBUF flag and fix all the side effects. (Christian
            Brabandt, closes #2713)

Problem:    Terminal debug logging is a bit complicated.
Solution:   Make log_tr() use variable arguments (Ozaki Kiichi, closes #2730)

Problem:    Job in terminal window with no output channel is killed.
Solution:   Keep the job running when the input is a tty. (Ozaki Kiichi,
            closes #2734)

Problem:    Wrong number of arguments to vms_read().
Solution:   Drop the first argument. (Ozaki Kiichi)

Problem:    Memory leak from duplicate options. (Yegappan Lakshmanan)
Solution:   Don't set the default value twice.