Fix local variable name to camelCase

Author: zawataki

src/test/java/ru/lanwen/verbalregex/RealWorldUnitTest.java

@@ -123,21 +123,21 @@ public void oneOfShouldFindEpisodeTitleOfStarWarsMovies() {
     @Test
     public void captureAfterNewLineHasGroupNumberOne() throws Exception {
 
-        final String line_break = "\n";
+        final String lineBreak = "\n";
         final String some = "some";
         final String text = " text";
         final VerbalExpression expression = VerbalExpression.regex().
                         lineBreak()
                         .capture().find(some).endCapture().then(text)
                         .build();
 
-        assertEquals(some, expression.getText(line_break + some + text, 1));
+        assertEquals(some, expression.getText(lineBreak + some + text, 1));
     }
 
     @Test
     public void captureAfterNewLineHasANamedGroup() {
 
-        final String line_break = "\n";
+        final String lineBreak = "\n";
         final String some = "some";
         final String text = " text";
         final String captureName = "name";
@@ -147,6 +147,6 @@ public void captureAfterNewLineHasANamedGroup() {
                 .build();
 
         assertEquals(some,
-                expression.getText(line_break + some + text, captureName));
+                expression.getText(lineBreak + some + text, captureName));
     }
 }