fix(modules): adjust hint comments

exercises/modules/modules1.rs

@@ -1,5 +1,5 @@
 // modules1.rs
-// Make me compile! Execute `rustlings hint modules1` for hints :)
+// Execute `rustlings hint modules1` or use the `hint` watch subcommand for a hint.
 
 // I AM NOT DONE
 

exercises/modules/modules2.rs

@@ -1,12 +1,11 @@
 // modules2.rs
 // You can bring module paths into scopes and provide new names for them with the
 // 'use' and 'as' keywords. Fix these 'use' statements to make the code compile.
-// Make me compile! Execute `rustlings hint modules2` for hints :)
+// Execute `rustlings hint modules2` or use the `hint` watch subcommand for a hint.
 
 // I AM NOT DONE
 
 mod delicious_snacks {
-
     // TODO: Fix these use statements
     use self::fruits::PEAR as ???
     use self::veggies::CUCUMBER as ???

exercises/modules/modules3.rs

@@ -3,7 +3,7 @@
 // and especially from the Rust standard library into your scope.
 // Bring SystemTime and UNIX_EPOCH
 // from the std::time module. Bonus style points if you can do it with one line!
-// Make me compile! Execute `rustlings hint modules3` for hints :)
+// Execute `rustlings hint modules3` or use the `hint` watch subcommand for a hint.
 
 // I AM NOT DONE