Fix common misspellings and typos

Change-Id: I8152acaccd33a4b646d56cba0748aeefa0c16b35
diff --git a/src/rspro/per_opentype.c b/src/rspro/per_opentype.c
index 8c42f8b..e697cbb 100644
--- a/src/rspro/per_opentype.c
+++ b/src/rspro/per_opentype.c
@@ -154,7 +154,7 @@
 	} else {
 		FREEMEM(buf);
 		/* rv.code could be RC_WMORE, nonsense in this context */
-		rv.code = RC_FAIL; /* Noone would give us more */
+		rv.code = RC_FAIL; /* No one would give us more */
 	}
 
 	return rv;