Fix line rule failure

spec/ameba/rules/line_length_spec.cr

@@ -10,6 +10,11 @@ module Ameba::Rules
       subject.catch(source).valid?.should be_true
     end
 
+    it "passes if line consists of 79 symbols" do
+      source = Source.new "*" * 79
+      subject.catch(source).valid?.should be_true
+    end
+
     it "fails if there is at least one line longer than 79 symbols" do
       source = Source.new long_line
       subject.catch(source).valid?.should be_false

src/ameba/rules/comparison_to_boolean.cr

@@ -9,8 +9,8 @@ module Ameba::Rules
   # false === baz
   # ```
   # This is because these expressions evaluate to `true` or `false`, so you
-  # could get the same result by using either the variable directly, or negating
-  # the variable.
+  # could get the same result by using either the variable directly,
+  # or negating the variable.
   struct ComparisonToBoolean < Rule
     def test(source)
       CallVisitor.new self, source