Typofixes outside documentation area

    begining -> beginning
    canonicalizations -> canonicalization
    comand -> command
    dewrapping -> unwrapping
    dirtyness -> dirtiness
    DISCLAMER -> DISCLAIMER
    explicitely -> explicitly
    feeded -> fed
    impiled -> implied
    madatory -> mandatory
    mimick -> mimic
    preceeding -> preceding
    reqeuest -> request
    substition -> substitution

Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin-show-branch.c b/builtin-show-branch.c
index 9f13caa..35a709e 100644
--- a/builtin-show-branch.c
+++ b/builtin-show-branch.c
@@ -567,7 +567,7 @@
 			return config_error_nonbool(var);
 		/*
 		 * default_arg is now passed to parse_options(), so we need to
-		 * mimick the real argv a bit better.
+		 * mimic the real argv a bit better.
 		 */
 		if (!default_num) {
 			default_alloc = 20;