Update src/parse.jl

Co-authored-by: Nick Robinson <npr251@gmail.com>

Author: Drvi

src/parse.jl

@@ -174,7 +174,7 @@ end
 # We return a value of T -- i.e. the _integer_ backing the FixedDecimal, the reintrpret needs to happen later
 @inline function Parsers.typeparser(conf::FixedDecimalConf{T}, source, pos, len, b, code, pl, options) where {T<:Integer}
     if !(options.rounding in (nothing, RoundNearest, RoundToZero, RoundThrows))
-        throw(ArgumentError("Unhandled rounding mode $options.rounding"))
+        throw(ArgumentError("Unhandled rounding mode $(options.rounding)"))
     end
 
     startpos = pos