Trim whitespace

Author: mhauru

src/varname.jl

@@ -7,7 +7,7 @@ This is a very restricted version `subumes(u::VarName, v::VarName)` only really
 - Scalar: `x` subsumes `x[1, 2]`, `x[1, 2]` subsumes `x[1, 2][3]`, etc.
 
 ## Note
-- To get same matching capabilities as `AbstractPPL.subumes(u::VarName, v::VarName)` 
+- To get same matching capabilities as `AbstractPPL.subumes(u::VarName, v::VarName)`
   for strings, one can always do `eval(varname(Meta.parse(u))` to get `VarName` of `u`,
   and similarly to `v`. But this is slow.
 """