C++: fix comment formatting

Author: rdmarsh2

cpp/ql/lib/semmle/code/cpp/rangeanalysis/new/internal/semantic/SemanticSSA.qll

@@ -78,12 +78,13 @@ predicate semBackEdge(SemSsaPhiNode phi, SemSsaVariable inp, SemSsaReadPositionP
 /**
  * Holds if the edge from b1 to b2 is part of a multiple-entry cycle in an irreducible control flow
  * graph.
- * 
+ *
  * An ireducible control flow graph is one where the usual dominance-based back edge detection does
  * not work, because there is a cycle with multiple entry points, meaning there are
  * mutually-reachable basic blocks where neither dominates the other. For such a graph, we first
- * all detectable back-edges using the normal condition that the predecessor block is dominated by
- * the successor block, then mark all edges in a cycle in the resulting graph as back edges.
+ * remove all detectable back-edges using the normal condition that the predecessor block is
+ * dominated by the successor block, then mark all edges in a cycle in the resulting graph as back
+ * edges.
  */
 private predicate irreducibleSccEdge(SemBasicBlock b1, SemBasicBlock b2) {
   trimmedEdge(b1, b2) and trimmedEdge+(b2, b1)