(parse_display_format): minor optimization: get rid of strchr() call.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
src/filemanager/panel.c: cosmetics: empty lines, extra braces.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
src/filemanager/panel.[ch]: make some functions inline.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
src/filemanager/panel.c: 'else' after 'return' is useless.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
src/filemanager/panel.c: use variable initialization

...to remove one branch in 'if' statement.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
(maybe_cd): argument is boolean instead of int.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
(move_selection): variable is boolean instead of int.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
src/filemanager/panel.c: clarify condition in 'for' statements.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>