Fix the namespace for the pw_status tests

Change-Id: Iec5a3bdc52ccf97da7f46b05c4d4747aa12e4c59
diff --git a/pw_status/status_test.cc b/pw_status/status_test.cc
index d7e28a4..91b3343 100644
--- a/pw_status/status_test.cc
+++ b/pw_status/status_test.cc
@@ -16,7 +16,7 @@
 
 #include "gtest/gtest.h"
 
-namespace pw::string {
+namespace pw {
 namespace {
 
 constexpr Status::Code kInvalidCode = static_cast<Status::Code>(30);
@@ -77,4 +77,4 @@
 }
 
 }  // namespace
-}  // namespace pw::string
+}  // namespace pw
diff --git a/pw_status/status_with_size_test.cc b/pw_status/status_with_size_test.cc
index 7b07992..30ad386 100644
--- a/pw_status/status_with_size_test.cc
+++ b/pw_status/status_with_size_test.cc
@@ -16,11 +16,12 @@
 
 #include "gtest/gtest.h"
 
-namespace pw::string {
+namespace pw {
 namespace {
 
 static_assert(StatusWithSize::max_size() ==
-              (static_cast<size_t>(1) << (sizeof(size_t) * 8 - 5)) - 1);
+                  (static_cast<size_t>(1) << (sizeof(size_t) * 8 - 5)) - 1,
+              "max_size() should use all but the top 5 bits of a size_t.");
 
 TEST(StatusWithSize, Default) {
   StatusWithSize result;
@@ -98,4 +99,4 @@
 }
 
 }  // namespace
-}  // namespace pw::string
+}  // namespace pw