style, format Makefile.am comments
style, correct "real" trailing white spaces

... still keeping our trailing tab indentations.
style, remove some newlines
style, remove all trailing tabs
style, break some lines after 80 characters
Merge branch 'style'

* style:
  style, break some lines after 80 characters
  style, remove all trailing tabs
  style, remove some newlines
  style, correct "real" trailing white spaces
  style, format Makefile.am comments