spell check docs with spellintian (#1223)

Fix spelling errors

- Add Makefile target that checks for spelling errors
- Add Makefile target that fixes spelling errors
- Add spelling check to travis doc tests
- Fix various spelling errors in the docs 

3 files changed, 3 insertions, 3 deletions

diff --git a/doc/sources/kernel-cmdline.txt b/doc/sources/kernel-cmdline.txt
index 0b77a9af..4cbfd217 100644
--- a/doc/sources/kernel-cmdline.txt
+++ b/doc/sources/kernel-cmdline.txt
@@ -9,7 +9,7 @@ as it requires knowing in advance the correct command line or modifying
 the boot loader to append data.
 
 For example, when 'cloud-init start' runs, it will check to
-see if if one of 'cloud-config-url' or 'url' appear in key/value fashion
+see if one of 'cloud-config-url' or 'url' appear in key/value fashion
 in the kernel command line as in:
    root=/dev/sda ro url=http://foo.bar.zee/abcde
 
diff --git a/doc/sources/ovf/README b/doc/sources/ovf/README
index e3ef12e0..3e0b366b 100644
--- a/doc/sources/ovf/README
+++ b/doc/sources/ovf/README
@@ -53,7 +53,7 @@ box, follow the steps below.
   You can change that at the grub prompt if you'd like by editing the
   kernel entry.  Otherwise, to see progress you'll need to switch
   to the serial console.  In kvm graphic mode, you do that by clicking
-  in the window and then pressing pressing 'ctrl-alt-3'.  For information
+  in the window and then pressing 'ctrl-alt-3'.  For information
   on how to do that in virtualbox or kvm curses, see the relevant
   documentation.
 
diff --git a/doc/sources/ovf/make-iso b/doc/sources/ovf/make-iso
index 91d0e2e5..e46642bf 100755
--- a/doc/sources/ovf/make-iso
+++ b/doc/sources/ovf/make-iso
@@ -28,7 +28,7 @@ Usage() {
 	cat <<EOF
 Usage: ${0##*/} ovf-env.xml.tmpl [user-data-file]
 
-   create an an ovf transport iso with ovf-env.xml.tmpl
+   create an ovf transport iso with ovf-env.xml.tmpl
    as ovf-env.xml on the iso.
 
    if user-data-file is given, the file's contents will be base64 encoded