Fix review comments

Author: steakhal

clang/lib/Analysis/CFG.cpp

@@ -459,7 +459,7 @@ reverse_children::reverse_children(Stmt *S, ASTContext &Ctx) {
   }
 
   case Stmt::AttributedStmtClass: {
-    // for an attributed stmt, the "children()" returns only the NullStmt
+    // For an attributed stmt, the "children()" returns only the NullStmt
     // (;) but semantically the "children" are supposed to be the
     // expressions _within_ i.e. the two square brackets i.e. [[ HERE ]]
     // so we add the subexpressions first, _then_ add the "children"

clang/lib/StaticAnalyzer/Core/ExprEngineC.cpp

@@ -796,7 +796,6 @@ void ExprEngine::VisitGuardedExpr(const Expr *Ex,
 
   // Find the predecessor block.
   ProgramStateRef SrcState = state;
-
   for (const ExplodedNode *N = Pred ; N ; N = *N->pred_begin()) {
     auto Edge = N->getLocationAs<BlockEdge>();
     if (!Edge.has_value()) {