Revert "strerror: incl enum name"

Revert submission 1833622-usable-strerror

Reason for revert: b/202330586
Bug: 202330586
Reverted Changes:
I4d8f617a0:Track strerror(3) change.
I8ea86220c:strerror: incl enum name
I407bd9f4d:strerror: incl enum name

Change-Id: I81ed563221a77827084711eadd7fb739aeba52a1
diff --git a/tests/stdio_test.cpp b/tests/stdio_test.cpp
index cf8cb0a..e38dd60 100644
--- a/tests/stdio_test.cpp
+++ b/tests/stdio_test.cpp
@@ -2461,7 +2461,7 @@
   ASSERT_STREQ("<Unknown error -1>", buf);
   errno = EINVAL;
   snprintf(buf, sizeof(buf), "<%m>");
-  ASSERT_MATCH(buf, "<Invalid argument.*>");
+  ASSERT_STREQ("<Invalid argument>", buf);
 }
 
 TEST(STDIO_TEST, printf_m_does_not_clobber_strerror) {
@@ -2484,7 +2484,7 @@
   ASSERT_EQ(std::wstring(L"<Unknown error -1>"), buf);
   errno = EINVAL;
   swprintf(buf, sizeof(buf), L"<%m>");
-  ASSERT_MATCH(buf, L"Invalid argument.*>");
+  ASSERT_EQ(std::wstring(L"<Invalid argument>"), buf);
 }
 
 TEST(STDIO_TEST, wprintf_m_does_not_clobber_strerror) {
@@ -2558,9 +2558,9 @@
 
 TEST(STDIO_TEST, perror) {
   ExecTestHelper eth;
-  eth.Run([&]() { errno = EINVAL; perror("a b c"); exit(0); }, 0, "a b c: Invalid argument.*\n");
-  eth.Run([&]() { errno = EINVAL; perror(nullptr); exit(0); }, 0, "Invalid argument.*\n");
-  eth.Run([&]() { errno = EINVAL; perror(""); exit(0); }, 0, "Invalid argument.*\n");
+  eth.Run([&]() { errno = EINVAL; perror("a b c"); exit(0); }, 0, "a b c: Invalid argument\n");
+  eth.Run([&]() { errno = EINVAL; perror(nullptr); exit(0); }, 0, "Invalid argument\n");
+  eth.Run([&]() { errno = EINVAL; perror(""); exit(0); }, 0, "Invalid argument\n");
 }
 
 TEST(STDIO_TEST, puts) {