m4: expand tabs to spaces?

[Andrew Janke]

Hi, Libtool folks,

The autoconf files in the m4/ directory are indented with a mixture of 
tabs and spaces. Would you consider expanding them to spaces? This would 
make them easier to read when viewed in the context of another project 
which has a different tab configuration.

Here's an example of how it would look:

Branch: https://github.com/apjanke/libtool/tree/expand-tabs-in-m4

Patch 1: expand spaces: 
https://github.com/apjanke/libtool/commit/66def0a048037e5f5ebb6c998704ebdb3b334457
Patch 2: fix some indentation errors: 
https://github.com/apjanke/libtool/commit/a9a162b1aff30bd2d4a3d48d284d3aebf602ebaf 


Cheers,
Andrew Janke