diff: Add support for man(7) pages

Hi!

I added the following to my gitconfig and attributes files to improve 
diffs in manual pages.  Would you mind adding support for them in git(1)?

Thanks,

Alex

P.S.: The extension I used in the attributes file is imperfect, since a 
glob wouldn't allow me as much precission as a regex.  With a regex, it 
would be written as '\.[1-9][[:lower:]]*$'.


---

     git: diff "man": Correctly interpret man(7) pages.

     Signed-off-by: Alejandro Colomar [off-list ref]

diff --git a/home/user/.config/git/attributes 

b/home/user/.config/git/attributes
new file mode 100644
index 0000000..652558f

--- /dev/null
+++ b/home/user/.config/git/attributes

@@ -0,0 +1 @@
+*.[1-9]* diff=man

diff --git a/home/user/.gitconfig b/home/user/.gitconfig
index 72ddc50..adb6cbb 100644
--- a/home/user/.gitconfig
+++ b/home/user/.gitconfig

@@ -27,3 +27,5 @@
         signingKey = A9348594CE31283A826FBDD8D57633D441E25BB5
  [diff]
         algorithm = histogram
+[diff "man"]
+       xfuncname = "^\\.S[SH] .*$"

-- 
<http://www.alejandro-colomar.es/>