Assorted spelling fixes.

programs/cmd/builtins.c

diff --git a/programs/cmd/builtins.c b/programs/cmd/builtins.c
index 4d0fd5e..53aa742 100644
--- a/programs/cmd/builtins.c
+++ b/programs/cmd/builtins.c
@@ -414,7 +414,7 @@
           FindClose (hff);
         }
 
-        /* Now recurse into all subdirectories handling the paramater in the same way */
+        /* Now recurse into all subdirectories handling the parameter in the same way */
         if (strstr (quals, "/S") != NULL) {
 
           char thisDir[MAX_PATH];