Manually apply `zig fmt` style to comments

exercises/09_if.zig

@@ -11,7 +11,7 @@
 //
 //     a == b   means "a equals b"
 //     a < b    means "a is less than b"
-//     a !=b    means "a does not equal b"
+//     a != b   means "a does not equal b"
 //
 // The important thing about Zig's "if" is that it *only* accepts
 // boolean values. It won't coerce numbers or other types of data

exercises/11_while.zig

@@ -13,7 +13,7 @@
 //     a == b   means "a equals b"
 //     a < b    means "a is less than b"
 //     a > b    means "a is greater than b"
-//     a !=b    means "a does not equal b"
+//     a != b   means "a does not equal b"
 //
 const std = @import("std");
 

exercises/13_while3.zig

@@ -5,9 +5,9 @@
 //
 // Example:
 //
-//     while (condition) : (continue expression){
+//     while (condition) : (continue expression) {
 //
-//         if(other condition) continue;
+//         if (other condition) continue;
 //
 //     }
 //

exercises/14_while4.zig

@@ -1,9 +1,9 @@
 //
 // You can force a loop to exit immediately with a "break" statement:
 //
-//     while (condition) : (continue expression){
+//     while (condition) : (continue expression) {
 //
-//         if(other condition) break;
+//         if (other condition) break;
 //
 //     }
 //

exercises/18_functions.zig

@@ -3,7 +3,7 @@
 // writing one of our own:
 //
 //     fn foo(n: u8) u8 {
-//         return n+1;
+//         return n + 1;
 //     }
 //
 // The foo() function above takes a number "n" and returns a number that is

exercises/19_functions2.zig

@@ -3,7 +3,7 @@
 // example that takes two parameters. As you can see, parameters
 // are declared just like any other types ("name": "type"):
 //
-//     fn myFunction( number: u8, is_lucky: bool ) {
+//     fn myFunction(number: u8, is_lucky: bool) {
 //         ...
 //     }
 //

exercises/30_switch.zig

@@ -22,8 +22,6 @@
 //         return GameError.TooManyPlayers;
 //     }
 //     
-//
-//
 const std = @import("std");
 
 pub fn main() void {