Update cpp/ql/lib/CHANGELOG.md

Author: asgerf

cpp/ql/lib/CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ### Minor Analysis Improvements
 
-* `AnalysedExpr::isNullCheck` and `AnalysedExpr::isValidCheck` have been updated to handle variable accesses on the left-hand side of the the C++ logical "and", and variable declarations in conditions.
+* `AnalysedExpr::isNullCheck` and `AnalysedExpr::isValidCheck` have been updated to handle variable accesses on the left-hand side of the C++ logical "and", and variable declarations in conditions.
 
 ## 0.3.0