unifying some declarations in src dir

[vit_r]

Example

replacing

//  some  chars

    int line
    int start_line

by

/*  some  chars  */

    long line
    long start_line

[vit_r]

trivial changes in some src-dir C-files

[slyfox]

1. Why long, but not off_t?

2.

---MC_FLHGH_FTYPE_T_SPECIAL_DOOR, 
+++MC_FLHGH_FTYPE_T_SPECIAL_DOOR 

Wtf? Trailing comma is legal (and consistent with other declarations),
so appending new enum entries patch will affect only new strings.

3.

mcview__get_nroff_real_len (mcview_t * view, off_t start, off_t length)
mcview_get_nroff_real_len (mcview_t * view, off_t start, off_t length)

What was the point ?

Guess, You didn't see mc_search _ _ * set of functions.
It's kind of ${subsystem} _ _ ${local_name}. Maybe, it
should be documented somewhere in code style guidelines.

Thanks.