Fix some typo and comments
[skip ci]

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4149)
diff --git a/test/testutil.h b/test/testutil.h
index f779fd5..1e18ea1 100644
--- a/test/testutil.h
+++ b/test/testutil.h
@@ -41,7 +41,7 @@
  * int global_init(void);
  *
  * This function should return zero if there is an unrecoverable error and
- * non-zero if the intialization was successful.
+ * non-zero if the initialization was successful.
  */
 
 /* Adds a simple test case. */
@@ -235,8 +235,8 @@
 
 /*
  * Check a boolean result for being true or false.
- * They return 1 if the condition is true (i.e. the value is non-zro).
- * Otherwise, they return 0 and pretty-prints diagnostics using |desc|.
+ * They return 1 if the condition is true (i.e. the value is non-zero).
+ * Otherwise, they return 0 and pretty-prints diagnostics using |s|.
  * These should not be called directly, use the TEST_xxx macros below instead.
  */
 int test_true(const char *file, int line, const char *s, int b);