package/stress-ng: fix 'correctly' typo in comment

Also fix conjugations of verbs.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
[Arnout: fix additional typoes]
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
(cherry picked from commit 3c4dd46791dfa7f599d132d2d6f00f3bf57fd081)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/stress-ng/stress-ng.mk

@@ -28,9 +28,9 @@ define STRESS_NG_BUILD_CMDS
 	$(TARGET_CONFIGURE_OPTS) $(MAKE) -C $(@D) $(STRESS_NG_MAKE_FLAGS)
 endef
 
-# Don't use make install otherwise stress-ng will be rebuild without
-# required link libraries if any. Furthermore, using INSTALL allow to
-# set the file permission correcly on the target.
+# Don't use make install otherwise stress-ng will be rebuilt without
+# required link libraries if any. Furthermore, using INSTALL allows to
+# set the file permission correctly on the target.
 define STRESS_NG_INSTALL_TARGET_CMDS
 	$(INSTALL) -m 0755 -D $(@D)/stress-ng $(TARGET_DIR)/usr/bin/stress-ng
 endef