Disable language check warnings of type "[W]: No display definition on line".

Those warnings were masking all other much more useful build process output.

lang/lang-build.sh

@@ -82,7 +82,7 @@ generate_binary()
  rm -f lang_$1.dat
  LNG=$1
  #check lang dictionary
- /usr/bin/env python lang-check.py $1
+ /usr/bin/env python lang-check.py $1 --no-warning
  #create lang_xx.tmp - different processing for 'en' language
  if [ "$1" = "en" ]; then
   #remove comments and empty lines