rm trailing whitespace

Author: ericphanson

test/asyncmap.jl

@@ -56,7 +56,7 @@ len_only_iterable = (1,2,3,4,5)
 
 # Check that we throw a `CapturedException` holding the stacktrace if `f` throws
 f42105(i) = i == 5 ? error("captured") :  i
-let 
+let
     e = try
         asyncmap(f42105, 1:5)
     catch e