[file-roller] restore the original condition

[Paolo Bacchilega <paobac src gnome org>]

commit f243fe19623b69ae628ae55cd2eabb8182fcfcef
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sun May 17 07:35:44 2015 +0200

    restore the original condition

 src/fr-command-7z.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/fr-command-7z.c b/src/fr-command-7z.c
index 62a8fbe..fc33d4d 100644
--- a/src/fr-command-7z.c
+++ b/src/fr-command-7z.c
@@ -619,7 +619,7 @@ fr_command_7z_get_capabilities (FrArchive  *archive,
                        /* give priority to rar and unrar that supports RAR files better. */
                        if (!_g_program_is_available ("rar", check_command)
                            && !_g_program_is_available ("unrar", check_command)
-                           && g_file_test ("/usr/lib/p7zip/Codecs/Rar29.so", G_FILE_TEST_EXISTS))
+                           && (! check_command || g_file_test ("/usr/lib/p7zip/Codecs/Rar29.so", 
G_FILE_TEST_EXISTS)))
                                capabilities |= FR_ARCHIVE_CAN_READ;
                }
                else