Fix -r switch in repl
1)
"v" (fn [&] (print janet/version "-" janet/build) (os/exit 0) 1)
"s" (fn [&] (set raw-stdin true) (set should-repl true) 1)
- "r" (fn [&] (set should-repl true) 0)
+ "r" (fn [&] (set should-repl true) 1)
"p" (fn [&] (set exit-on-error false) 1)
"q" (fn [&] (set quiet true) 1)
"i" (fn [&] (set expect-image true) 1)
