Java/Kotlin: Tweak LoC message

Author: igfoo

java/ql/src/Metrics/Summaries/LinesOfCode.ql

@@ -1,6 +1,6 @@
 /**
  * @id java/summary/lines-of-code
- * @name Total lines of Java+Kotlin code in the database
+ * @name Total lines of Java/Kotlin code in the database
  * @description The total number of lines of code across all Java and Kotlin files. This is a useful metric of the size of a database.
  *              For all source files that were seen during the build, this query counts the lines of code, excluding whitespace
  *              or comments.