Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/

Add FreeBSD Id tag where missing.

1 files changed, 1 insertions, 1 deletions

diff --git a/usr.bin/tr/tr.1 b/usr.bin/tr/tr.1
index 78b7b06a0ecd..77f2fea05640 100644
--- a/usr.bin/tr/tr.1
+++ b/usr.bin/tr/tr.1
@@ -276,7 +276,7 @@ to the ``['' character in
 However, if the shell script is deleting or squeezing characters as in
 the command ``tr -d [a-z]'', the characters ``['' and ``]'' will be
 included in the deletion or compression list which would not have happened
-under an historic System V implementation.
+under a historic System V implementation.
 Additionally, any scripts that depended on the sequence ``a-z'' to
 represent the three characters ``a'', ``-'' and ``z'' will have to be
 rewritten as ``a\e-z''.