fmt: remove space in front of ? and ! (#14366)

vlib/arrays/arrays.v

@@ -369,7 +369,7 @@ pub fn upper_bound<T>(arr []T, val T) ?T {
 // binary search, requires `arr` to be sorted, returns index of found item or error.
 // Binary searches on sorted lists can be faster than other array searches because at maximum
 // the algorithm only has to traverse log N elements
-// Example: arrays.binary_search([1, 2, 3, 4], 4) ? // => 3
+// Example: arrays.binary_search([1, 2, 3, 4], 4)? // => 3
 pub fn binary_search<T>(arr []T, target T) ?int {
 	mut left := 0
 	mut right := arr.len - 1