Fix regex for matching branch to generate docs

scripts/validate.sh

@@ -23,7 +23,7 @@ mkdir -p /home/etsi/dev/build
 cd /home/etsi/dev/build
 rm -r -v *
 
-if [[ "$1" =~ .*-dev$ || "$1" =~ \d+(\.?\d)+ || "$1" == "origin/master" || "$1" == "origin/Release-3" ]]; then
+if [[ $1 =~ ^(origin\/){0,1}([0-9]{1}(\.[0-9]){2}){1}-dev$ || $1 =~ ^(origin\/){0,1}([0-9]{1})(\.[0-9]){2,10}$ || $1 =~ ^(origin\/){0,1}master$ || $1 =~ ^(origin\/){0,1}Release-([0-9]{1})$ ]]; then
 
 	echo "++++ Try to generate docs for branch $1"
 	cd /home/etsi/dev/robot2doc/robot2doc