Update re2

third_party/re2/re2/testing/required_prefix_test.cc

 // Copyright 2009 The RE2 Authors.  All Rights Reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 #include "util/test.h"
 #include "re2/regexp.h"
 
 namespace re2 {
 
 struct PrefixTest {
@@ skipping 10 matching lines @@
   { "", false },
   { "(?m)^", false },
 
   // If the regexp immediately goes into
   // something not a literal match, there's no required prefix.
   { "^(abc)", false },
   { "^a*",  false },
 
   // Otherwise, it should work.
   { "^abc$", true, "abc", false, "(?-m:$)" },
-  { "^abc", "true", "abc", false, "" },
+  { "^abc", true, "abc", false, "" },
   { "^(?i)abc", true, "abc", true, "" },
   { "^abcd*", true, "abc", false, "d*" },
   { "^[Aa][Bb]cd*", true, "ab", true, "cd*" },
   { "^ab[Cc]d*", true, "ab", false, "[Cc]d*" },
   { "^☺abc", true, "☺abc", false, "" },
 };
 
 TEST(RequiredPrefix, SimpleTests) {
   for (int i = 0; i < arraysize(tests); i++) {
     const PrefixTest& t = tests[i];
@@ skipping 16 matching lines @@
         CHECK_EQ(s->ToString(), string(t.suffix))
           << " " << t.regexp << " " << (j==0 ? "latin1" : "utf");
         s->Decref();
       }
       re->Decref();
     }
   }
 }
 
 }  // namespace re2