Don't call Solaris setproject() with UsePAM=yes.

When Solaris Projects are enabled along with PAM setting the project
is PAM's responsiblity.  bz#2425, based on patch from
brent.paulson at gmail.com.

platform.c

@@ -107,8 +107,12 @@ platform_setusercontext(struct passwd *pw)
 #endif
 
 #ifdef USE_SOLARIS_PROJECTS
-	/* if solaris projects were detected, set the default now */
-	if (getuid() == 0 || geteuid() == 0)
+	/*
+	 * If solaris projects were detected, set the default now, unless
+	 * we are using PAM in which case it is the responsibility of the
+	 * PAM stack.
+	 */
+	if (!options.use_pam && (getuid() == 0 || geteuid() == 0))
 		solaris_set_default_project(pw);
 #endif