limiting to 80 chars

Signed-off-by: Prasanna Gautam < prasannagautam@gmail.com >

docs/sources/contributing/devenvironment.md

@@ -63,7 +63,8 @@ To create the Docker binary, run this command:
 
     $ sudo make binary
 
-This will create the Docker binary in `./bundles/<version>-dev/binary/`. If you do not see files in the `./bundles` directory in your host, your BINDDIR setting is not set quite right. You want to run the following command: 
+This will create the Docker binary in `./bundles/<version>-dev/binary/`. If you do not see files in the `./bundles` directory in your host, 
+your `BINDDIR` setting is not set quite right. You want to run the following command: 
     
     $ sudo make BINDDIR=. binary