test-read-common: Fix error message

The error message in test_task::run_abidw in test-read-common.cc is
wrong.  Fixed thus.  Also, emit the error message directly to the standard
error as the error is detected.

	* tests/test-read-common.cc (test_task::run_abidw): Fix error
	message and emit it to stderr directly.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>

diff --git a/tests/test-read-common.cc b/tests/test-read-common.cc
index 8c682b1c98d888e03c45be3f5cbfc0b4d26f3119..9871f7c4ad5758db9a09d7ba7218329239f97852 100644 (file)
--- a/tests/test-read-common.cc
+++ b/tests/test-read-common.cc
@@ -103,16 +103,12 @@ test_task::run_abidw(const string& extargs)
     drop_private_types += "--headers-dir " + in_public_headers_path +
       " --drop-private-types";
   string cmd = abidw + " " + spec_options + drop_private_types +
-                 " --abidiff " + extargs + in_elf_path;
+    " --abidiff " + extargs + in_elf_path;
   if (system(cmd.c_str()))
     {
-      error_message = string("ABIs differ:\n")
-        + in_abi_path
-        + "\nand:\n"
-        + out_abi_path
-        + "\n"
+      error_message = string("self comparison with abidw failed:\n")
        + "command was: '" + cmd + "'\n";
-
+      std::cerr << error_message;
       return false;
     }