Excessive error messages for incomplete ternary

[Keno]

julia> Fact?
ERROR: ParseError:
# Error @ REPL[3]:1:5
Fact?
#   └ ── space required before `?` operator
# Error @ REPL[3]:1:6
Fact?
#    └ ── space required after `?` operator
# Error @ REPL[3]:1:6
Fact?
#    └ ── premature end of input
# Error @ REPL[3]:1:6
Fact?
#    └ ── space required before `:` in `?` expression
# Error @ REPL[3]:1:6
Fact?
#    └ ── `:` expected in `?` expression
# Error @ REPL[3]:1:6
Fact?
#    └ ── space required after `:` in `?` expression
# Error @ REPL[3]:1:6
Fact?
#    └ ── premature end of input
Stacktrace:
 [1] top-level scope
   @ none:1

[c42f]

This is fixed (or worked around) - we now only print the first error message.