[ocrfeeder] Fix getting engine name in ocrfeeder-cli

[Joaquim Manuel Pereira Rocha <jrocha src gnome org>]

commit e7ee15cf18de66e089fb8eac2830520c8d72e156
Author: Joaquim Rocha <me joaquimrocha com>
Date:   Mon Jul 7 22:16:09 2014 +0200

    Fix getting engine name in ocrfeeder-cli

 bin/ocrfeeder-cli.in |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/bin/ocrfeeder-cli.in b/bin/ocrfeeder-cli.in
index 6633694..bdb8ad2 100644
--- a/bin/ocrfeeder-cli.in
+++ b/bin/ocrfeeder-cli.in
@@ -109,8 +109,9 @@ if not len(ocr_engines):
     parser.error('No OCR engines configured.')
     exit(0)
 
-engine_name = options.engine.lower()
+engine_name = options.engine
 if engine_name:
+    engine_name = engine_name.lower()
     for engine in ocr_engines:
         if engine[0].name.lower() == engine_name:
             ocr_engine = engine[0]