[master] [1895] editorial: added a missing space in an error message.

not directly related to this branch, but the review comment on this point
for the previous change should actually apply to this.

src/bin/auth/tests/common_unittest.cc

@@ -36,7 +36,7 @@ public:
         BOOST_FOREACH(const Environ &env, restoreEnviron) {
             if (env.second == NULL) {
                 EXPECT_EQ(0, unsetenv(env.first.c_str())) <<
-                    "Couldn't restore environment, results of other tests"
+                    "Couldn't restore environment, results of other tests "
                     "are uncertain";
             } else {
                 EXPECT_EQ(0, setenv(env.first.c_str(), env.second->c_str(),