[clang][NFC] Remove trailing whitespace characters

Author: benshi001

clang/lib/Serialization/ASTReaderStmt.cpp

@@ -2007,7 +2007,7 @@ void ASTStmtReader::VisitCXXDependentScopeMemberExpr(
   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
   // not ImplicitAccess
   if (CurrentUnpackingBits->getNextBit())
-    E->Base = Record.readSubExpr();  
+    E->Base = Record.readSubExpr();
   else
     E->Base = nullptr;