[LoopVectorize][LoopAccessAnalysis] add newline to debug message

A debug message in `LoopAccessAnalysis` did not have a newline in it, causing printed debug messages to be formatted incorrectly.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D132172

llvm/lib/Analysis/LoopAccessAnalysis.cpp

@@ -1972,7 +1972,7 @@ MemoryDepChecker::isDependent(const MemAccessInfo &A, unsigned AIdx,
   // Unsafe if the minimum distance needed is greater than max safe distance.
   if (MinDistanceNeeded > MaxSafeDepDistBytes) {
     LLVM_DEBUG(dbgs() << "LAA: Failure because it needs at least "
-                      << MinDistanceNeeded << " size in bytes");
+                      << MinDistanceNeeded << " size in bytes\n");
     return Dependence::Backward;
   }