top: miscellaneous minor tweaks (mostly spelling)

This commit represents mostly spelling corrections
in comments.  It also includes a few very minor logic
changes/relocations.

Signed-off-by: Jim Warner <james.warner@comcast.net>

top/top.1

@@ -27,7 +27,7 @@
 .
 .ll +(\n[half_xtra] + \n[half_xtra])
 .
-\#  ** we use single quote char (') alot, so change the no-break ctrl char
+\#  ** we use single quote char (') a lot, so change the no-break ctrl char
 .c2 `
 .
 \#                      Our own Bullet style(s) --------------------------
@@ -39,7 +39,7 @@
 \#                           - our em-dashes
 .ds Em \fR\ \--\ \fR
 .ds EM \fB\ \--\ \fR
-\#                           - our program name (makes great grammer)
+\#                           - our program name (makes great grammar)
 .ds We top
 .ds WE \fBtop\fR
 \#                           - other misc strs for consistent usage
@@ -473,7 +473,7 @@ a \*(CO and an \*(CI.
 When you've chosen to display command lines, processes without a command
 line (like kernel threads) will be shown with only the program name in
 brackets, as in this example:
-    \fR[ mdrecoveryd ]
+    \fR[kthreadd]
 
 This field may also be impacted by the 'forest view' display mode.
 \*(XC 'V' \*(CI for additional information regarding that mode.