Patch from larry to fix some grammar errors.

docs/busybox.sgml

@@ -805,7 +805,7 @@
 
 		<para>
 		Summarize the disk space used for each FILE or current
-		directory.  Disk space printed in units of 1k (i.e.
+		directory.  Disk space printed in units of 1k (i.e.,
 		1024 bytes).
 		</para>
 
@@ -2285,7 +2285,7 @@
 
 		<para>
 		Creates a temporary file with its name based on
-		TEMPLATE.  TEMPLATE is any name with six `Xs' (i.e.
+		TEMPLATE.  TEMPLATE is any name with six `Xs' (i.e.,
 		/tmp/temp.XXXXXX).
 		</para>
 
@@ -3407,7 +3407,7 @@
 		<screen>
 			-a	Unmount all file systems
 			-r	Try to remount devices as read-only if mount is busy
-			-f	Force filesystem umount (i.e. unreachable NFS server)
+			-f	Force filesystem umount (i.e., unreachable NFS server)
 			-l	Do not free loop device (if a loop device has been used)
 		</screen>
 		</para>

docs/contributing.txt

@@ -45,7 +45,7 @@ Archives can be found here:
 
 	http://opensource.lineo.com/lists/busybox/
 
-If you have a serious interest in Busybox, i.e. you are using it day-to-day or
+If you have a serious interest in Busybox, i.e., you are using it day-to-day or
 as part of an embedded project, it would be a good idea to join the mailing
 list.
 
@@ -294,7 +294,7 @@ are some guidelines on how to test your changes.
    behavior / output is identical between the two.
 
  - Try several different permutations and combinations of the features you're
-   adding (i.e. different combinations of command-line switches) and make sure
+   adding (i.e., different combinations of command-line switches) and make sure
    they all work; make sure one feature does not interfere with another.
 
  - Make sure you test compiling against the source both with the feature
@@ -456,7 +456,7 @@ mailing list if:
 
  - Your changes are broad and touch many different files
  - You are adding a feature
- - Your changes are speculative or experimental (i.e. trying a new algorithm)
+ - Your changes are speculative or experimental (i.e., trying a new algorithm)
  - You are not the maintainer and your changes make the maintainer cringe
 
 The more of the above are true, the better it is to post a patch to the