Merge remote-tracking branch 'origin/pr/2450' into mbedtls-2.16

* origin/pr/2450:
  Fix #2370, minor typos and spelling mistakes

tests/scripts/all.sh

@@ -120,7 +120,7 @@ pre_initialize_variables () {
     FORCE=0
     KEEP_GOING=0
 
-    # Default commands, can be overriden by the environment
+    # Default commands, can be overridden by the environment
     : ${OPENSSL:="openssl"}
     : ${OPENSSL_LEGACY:="$OPENSSL"}
     : ${OPENSSL_NEXT:="$OPENSSL"}

tests/scripts/test_zeroize.gdb

@@ -17,7 +17,7 @@
 # seem to be a mechanism to reliably check whether the zeroize calls are being
 # eliminated by compiler optimizations from within the compiled program. The
 # problem is that a compiler would typically remove what it considers to be
-# "unecessary" assignments as part of redundant code elimination. To identify
+# "unnecessary" assignments as part of redundant code elimination. To identify
 # such code, the compilar will create some form dependency graph between
 # reads and writes to variables (among other situations). It will then use this
 # data structure to remove redundant code that does not have an impact on the