Adjust query precision

Author: tamasvajk

java/ql/integration-tests/java/query-suite/java-code-quality.qls.expected

@@ -75,6 +75,7 @@ ql/java/ql/src/Violations of Best Practice/Naming Conventions/ConfusingMethodNam
 ql/java/ql/src/Violations of Best Practice/Naming Conventions/ConfusingOverloading.ql
 ql/java/ql/src/Violations of Best Practice/Naming Conventions/LocalShadowsFieldConfusing.ql
 ql/java/ql/src/Violations of Best Practice/Naming Conventions/SameNameAsSuper.ql
+ql/java/ql/src/Violations of Best Practice/SpecialCharactersInLiterals/NonExplicitControlAndWhitespaceCharsInLiterals.ql
 ql/java/ql/src/Violations of Best Practice/Undesirable Calls/CallsToStringToString.ql
 ql/java/ql/src/Violations of Best Practice/Undesirable Calls/DefaultToString.ql
 ql/java/ql/src/Violations of Best Practice/Undesirable Calls/DoNotCallFinalize.ql

java/ql/src/Violations of Best Practice/SpecialCharactersInLiterals/NonExplicitControlAndWhitespaceCharsInLiterals.ql

@@ -4,7 +4,7 @@
  * @description Non-explicit control and whitespace characters in literals make code more difficult
  *              to read and may lead to incorrect program behavior.
  * @kind problem
- * @precision medium
+ * @precision very-high
  * @problem.severity warning
  * @tags quality
  *       correctness