Tidy the test comments and shell portability

1 file changed, 7 insertions, 0 deletions

diff --git a/tests/t0108-patch.sh b/tests/t0108-patch.sh
index ffcba96..3d38e55 100755
--- a/tests/t0108-patch.sh
+++ b/tests/t0108-patch.sh
@@ -1,5 +1,12 @@
 #!/bin/sh
 
+# The patch page serves a commit as a mail ready patch, so that a change read
+# from cgit can be fed straight to git am. The checks compare that output
+# against git format-patch for a single commit and for a range of them, once
+# the CGI headers have been stripped, which means the two have to agree line
+# for line. The last one sets max-patch-count so a range wider than the limit
+# comes back cut short.
+
 test_description='Check content on patch page'
 . ./setup.sh