Rename too short variables.
Remove useless initializations.
Rename too long variables.

Signed-off-by: Hugues Peccatte <hugues.peccatte@gmail.com>
Review of modifications

Signed-off-by: Hugues Peccatte <hugues.peccatte@gmail.com>
Merge pull request #824 from Tithugues/fixPMD

Fix PMD issues