kbuild, mtd, net: a few comment typo fixes and rewording

Signed-off-by: Gilles Espinasse <g.esp@free.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/kbuild/kbuild.txt b/Documentation/kbuild/kbuild.txt
index 4a99031..8f63b22 100644
--- a/Documentation/kbuild/kbuild.txt
+++ b/Documentation/kbuild/kbuild.txt
@@ -146,7 +146,7 @@
 INSTALL_MOD_STRIP, if defined, will cause modules to be
 stripped after they are installed.  If INSTALL_MOD_STRIP is '1', then
 the default option --strip-debug will be used.  Otherwise,
-INSTALL_MOD_STRIP will used as the options to the strip command.
+INSTALL_MOD_STRIP value will be used as the options to the strip command.
 
 INSTALL_FW_PATH
 --------------------------------------------------