Fix spelling/wording issues

Found by using:
    codespell --builtin clear,rare,usage,informal,code,names

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/AUTHORS b/AUTHORS
index 1f3e437..ddc6600 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -1,3 +1,3 @@
-Xpm was originally written by Groupe Bull, but maintainence has since passed
+Xpm was originally written by Groupe Bull, but maintenance has since passed
 through the hands of XFree86, and to freedesktop.org; Daniel Stone is the
 current maintainer.