output 'file size exceeded' instead of 'couldn't upload files' when appropriate

svn path=/trunk/boinc/; revision=1590

checkin_notes

@@ -5042,3 +5042,12 @@ Karl    2003/06/23
         test_uc.py
     sched/
         start_servers.C
+
+Karl    2003/06/24
+    - if application exceeds disk space limit, output message "Exceeded size
+      limit" instead of "Couldn't upload files"
+
+    client/
+        client_state.C
+    sched/
+        handle_request.C

client/client_state.C

@@ -1214,7 +1214,13 @@ bool CLIENT_STATE::garbage_collect() {
                     if (!rp->ready_to_ack) {
                         // had an error uploading a file for this result
                         //
-                        report_result_error(*rp, 0, "Couldn't upload files");
+                        switch(failnum) {
+                        case ERR_FILE_TOO_BIG:
+                            report_result_error(*rp, 0, "Output file exceeded size limit");
+                            break;
+                        default:
+                            report_result_error(*rp, 0, "Couldn't upload files or other output file error");
+                        }
                     }
                 }
                 rp->output_files[i].file_info->ref_cnt++;