Use regexp by whole name for murano_application

Sometime we can have murano application packages that match regexp
by words. So, better to use regexp for whole package name.

Change-Id: I43203b44460bf6542564ed59419f9d5b5c9c5c99

lib/puppet/provider/murano_application/murano.rb

@@ -15,7 +15,7 @@ Puppet::Type.type(:murano_application).provide(
   def exists?
     packages = auth_murano('package-list')
     return packages.split("\n")[1..-1].detect do |n|
-      n =~ /\b(#{resource[:name]})\b/
+      n =~ /\s(#{resource[:name]})\s/
     end
   end