Merge "Fix sanitizer errors in bootstat.cpp."

am: 9ddf491492

Change-Id: Ib417abbcf4ce2b18f508af9e0ef95e4cca789c02

bootstat/bootstat.cpp

@@ -429,9 +429,11 @@ class pstoreConsole {
     if (needle.length() > pos) return std::string::npos;
     pos -= needle.length();
     // fuzzy match to maximum kBitErrorRate
-    do {
+    for (;;) {
       if (numError(pos, needle) != std::string::npos) return pos;
-    } while (pos-- != 0);
+      if (pos == 0) break;
+      --pos;
+    }
     return std::string::npos;
   }