Make rpmlint happy

- Remove weird white spaces;
- don't mix tabs with white spaces;
- Use "bar code" instead of: "barcode".
- Use "e. g." instead of "eg".

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

zbar.spec

@@ -22,7 +22,7 @@ BuildRequires:	libv4l-devel libXv-devel xmlto
 A layered bar code scanning and decoding library. Supports EAN, UPC, Code 128,
 Code 39 and Interleaved 2 of 5.
 Includes applications for decoding captured bar code images and using a video
-device (eg, webcam) as a barcode scanner.
+device (e. g., webcam) as a bar code scanner.
 
 %package devel
 Group: Development/Libraries