parse: Ignore -- on the command line.

find uses -- to indicate the end of the flags.  That is,

    $ find -L -- -type f

is allowed, but

    $ find -- -L -type f

results in an error about an unknown predicate `-L`.  This behaviour
doesn't seem particularly useful -- in particular, unlike most other
tools, it doesn't help you if you want to specify a filename beginning
with a -.

So to ensure bfs is compatible with all GNU find command lines, we just
ignore -- whenever it appears.

1 files changed, 11 insertions, 1 deletions

diff --git a/tests.sh b/tests.sh
index 5fd4a9b..63de3ee 100755
--- a/tests.sh
+++ b/tests.sh
@@ -367,7 +367,17 @@ function test_0065() {
     diff -u "$out/out.find" "$out/out.bfs"
 }
 
-for i in {1..65}; do
+function test_0066() {
+    cd "$basic"
+    find_diff -- -type f
+}
+
+function test_0067() {
+    cd "$basic"
+    find_diff -L -- -type f
+}
+
+for i in {1..67}; do
     test="test_$(printf '%04d' $i)"
     ("$test" "$dir")
     status=$?