assign a=false, not all=false (same effect but more appropriate)

common_go118.go

@@ -62,7 +62,7 @@ func fromInterface(pass *analysis.Pass, intf *types.Interface, typeparam bool) (
 				r, a := fromType(pass, u.Term(i).Type(), typeparam)
 				for _, rr := range r {
 					if !sameBasicKind(rr.et.TypeName.Type()) {
-						all = false
+						a = false
 						break
 					}
 				}
@@ -74,7 +74,7 @@ func fromInterface(pass *analysis.Pass, intf *types.Interface, typeparam bool) (
 			r, a := fromNamed(pass, embed.(*types.Named), typeparam)
 			for _, rr := range r {
 				if !sameBasicKind(rr.et.TypeName.Type()) {
-					all = false
+					a = false
 					break
 				}
 			}

exhaustive.go

@@ -10,11 +10,11 @@ The Go [language spec] does not provide an explicit definition for enums. For
 the purpose of this analyzer, and by convention, an enum type is any named
 type that:
 
- 1. has underlying type float, string, or integer (includes byte and
+  - has underlying type float, string, or integer (includes byte and
     rune, which are aliases for uint8 and int32, respectively); and
- 2. has at least one constant of the type defined in the same scope.
+  - has at least one constant of the type defined in the same scope.
 
-In the example below, Biome is an enum type. The 3 constants are its
+In the example below, Biome is an enum type. The three constants are its
 enum members.
 
 	package eco