Fix compile error

CAD97 · CAD97 · commit 8206993caf91 · 2018-06-05T18:49:45.000-04:00
diff --git a/src/lib.rs b/src/lib.rs
@@ -29,7 +29,7 @@ static NL_RIGHT: &str = "\n>";
 fn enable_ansi() {
     if cfg!(windows) {
         static ONCE: Once = Once::new();
-        ONCE.call_once(|| ansi_term::enable_ansi_support().ok());
+        ONCE.call_once(|| {ansi_term::enable_ansi_support().ok();});
     }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -29,7 +29,7 @@ static NL_RIGHT: &str = "\n>";`
`29`	`29`	`fn enable_ansi() {`
`30`	`30`	`if cfg!(windows) {`
`31`	`31`	`static ONCE: Once = Once::new();`
`32`		`- ONCE.call_once(\|\| ansi_term::enable_ansi_support().ok());`
	`32`	`+ ONCE.call_once(\|\| {ansi_term::enable_ansi_support().ok();});`
`33`	`33`	`}`
`34`	`34`	`}`
`35`	`35`