Tune a bit the extdiff toplevel comments/samples. * Capitalize the first letter of all sentences * Add an example for GNU diff(1) 'context diff' mode. * Explain the requirement for separate cmd.xxx and opts.xxx options in .hgrc, which hopefully will guard against users trying to add: [extdiff] # Add a new Mercurial command called `cdiff', which calls # GNU diff(1) in 'context diff' mode. cmd.cdiff = diff -Nprc5 which fails for recent crew builds with: $ hg cdiff . making snapshot of 1 files from rev 07dc4a569f4e making snapshot of 1 files from working dir diff -Nprc5: not found The correct way to do this is by separating the cmd.cdiff and opts.cdiff parts like this: [extdiff] # Add a new Mercurial command called `cdiff', which calls # GNU diff(1) in 'context diff' mode. cmd.cdiff = diff opts.cdiff = -Nprc5 so add it as a new example and explicitly describe it in the extdiff comments.

adding start
adding new
% new file
diff --git a/new b/new
new file mode 100644
--- /dev/null
+++ b/new
@@ -0,0 +1,1 @@
+new
% copy
diff --git a/new b/copy
copy from new
copy to copy
% rename
diff --git a/copy b/rename
rename from copy
rename to rename
% delete
diff --git a/rename b/rename
deleted file mode 100644
--- a/rename
+++ /dev/null
@@ -1,1 +0,0 @@
-new
adding src
% chmod 644
diff --git a/src b/src
old mode 100644
new mode 100755
% rename+mod+chmod
diff --git a/src b/dst
old mode 100755
new mode 100644
rename from src
rename to dst
--- a/dst
+++ b/dst
@@ -3,3 +3,4 @@ 3
 3
 4
 5
+a