main: "--" should also block "-o" parsing

Includes test cases.

1 files changed, 1 insertions, 0 deletions

diff --git a/README.md b/README.md
index 5e6d1e7..a37cb63 100644
--- a/README.md
+++ b/README.md
@@ -162,6 +162,7 @@ v1.3 (in progress)
 * Use stable 64-bit inode numbers in reverse mode
   * This may cause problems for very old 32-bit applications
     that were compiled without Large File Support.
+* Passing "--" now also block "-o" parsing
 
 v1.2.1, 2017-02-26
 * Add an integrated speed test, `gocryptfs -speed`