Title: Emacs: replace tabs with spaces
Date: 2011-05-06 18:27:59

When you want to replace tab with spaces or vice versa don't use `M-%`
*(query-replace)* but `M-x tabify` or `M-x untabify`. They work on the
current selection so if you want it to be applied to a whole buffer,
try `C-x h` *(mark-whole-buffer)* before to select the whole buffer.
