fix typos

Author: Dylan-DPC

.github/ISSUE_TEMPLATE/ice.yml

@@ -10,7 +10,7 @@ body:
     attributes:
       label: Summary
       description: |
-        If possible, try to provide a minimal verifiable example. You can read ["Rust Bug Minimization Patterns"][mve] for how to create smaller examples. Otherwise, provide the crate where the ICE occured.
+        If possible, try to provide a minimal verifiable example. You can read ["Rust Bug Minimization Patterns"][mve] for how to create smaller examples. Otherwise, provide the crate where the ICE occurred.
 
         [mve]: http://blog.pnkfx.org/blog/2019/11/18/rust-bug-minimization-patterns/
     validations:

clippy_lints/src/upper_case_acronyms.rs

@@ -114,7 +114,7 @@ impl LateLintPass<'_> for UpperCaseAcronyms {
                 check_ident(cx, &it.ident, self.upper_case_acronyms_aggressive);
             },
             ItemKind::Enum(ref enumdef, _) => {
-                // check enum variants seperately because again we only want to lint on private enums and
+                // check enum variants separately because again we only want to lint on private enums and
                 // the fn check_variant does not know about the vis of the enum of its variants
                 enumdef
                     .variants