Applied temporary fix to error code returned by pj_gethostbyname(). Under *nix, the error code is returned in h_errno, and the error string is reported by hstrerror(). But it is a bit too complex to support this for the moment, so we just return PJ_ERESOLVE for any failure returned by gethostbyname()

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@722 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjlib/src/pj/addr_resolv_sock.c b/pjlib/src/pj/addr_resolv_sock.c
index 36c1c57..af3d40c 100644
--- a/pjlib/src/pj/addr_resolv_sock.c
+++ b/pjlib/src/pj/addr_resolv_sock.c
@@ -38,7 +38,7 @@
 
     he = gethostbyname(copy);
     if (!he)
-	return PJ_RETURN_OS_ERROR(pj_get_native_netos_error());
+	return PJ_ERESOLVE;
 
     phe->h_name = he->h_name;
     phe->h_aliases = he->h_aliases;