Made fix to macro arg parsing.

reci.lua

@@ -100,6 +100,7 @@ function Tag:register(var)
 	end
 
 	for k, v in pairs(var) do
+		Logger.debug(string.format("<%s> Registered: %s=%s", self.name, k, v)) 
 		self.vars[k] = v
 	end
 
@@ -213,7 +214,7 @@ function processopts(captured)
 		end
 
 		if v[1] == "-r" then
-			for k, vv in string.gmatch(v[2][1], "(%w+)=(%w+)") do
+			for k, vv in string.gmatch(v[2][1], "([%w_]+)=(.+)") do
 				values.vartable[k] = vv
 			end
 		end