libxcrypt-compat: upgrade 4.4.19 -> 4.4.20

(From OE-Core rev: d7eb1125e974fddd43062665bd5eb29f352832dc)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/libxcrypt/files/fix_cflags_handling.patch

@@ -1,3 +1,8 @@
+From fd9a46695594c3cd836ecb7d959f03f605e69a2f Mon Sep 17 00:00:00 2001
+From: Richard Purdie <richard.purdie@linuxfoundation.org>
+Date: Fri, 30 Apr 2021 10:35:02 +0100
+Subject: [PATCH] libxcrypt: Update to 4.4.19 release and fix symbol version
+
 If you pass CFLAGS with a leading space, " " gets passed to popen and convinces
 gcc to try and open a file called " ". This results in a confusing error message
 like:
@@ -9,8 +14,12 @@ Avoid this by stripping empty elements out of CFLAGS.
 Upstream-Status: Submitted [https://github.com/besser82/libxcrypt/pull/126]
 Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
 
-Index: a/build-aux/compute-symver-floor
-===================================================================
+---
+ build-aux/compute-symver-floor | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/build-aux/compute-symver-floor b/build-aux/compute-symver-floor
+index 4ec82e1..8117342 100644
 --- a/build-aux/compute-symver-floor
 +++ b/build-aux/compute-symver-floor
 @@ -36,6 +36,8 @@ sub preprocessor_check {
@@ -20,5 +29,5 @@ Index: a/build-aux/compute-symver-floor
 +        # Remove empty elements, particularly leading ones which cause issues with popen below
 +        @CFLAGS = grep {$_} @CFLAGS;
  
-         # We call ensure_C_locale here, not from the main section,
-         # because this sub might not get called at all, in which
+         # Remove empty elements, particularly leading ones which
+         # cause issues with popen below.

meta/recipes-core/libxcrypt/libxcrypt.inc

@@ -10,7 +10,7 @@ LIC_FILES_CHKSUM = "file://LICENSING;md5=afed27a72ae2a8075978299eebaa1f5d \
 inherit autotools pkgconfig
 
 SRC_URI = "git://github.com/besser82/libxcrypt.git;branch=${SRCBRANCH}"
-SRCREV = "c79119414d7e30017d7b49566e7e4ea35112bdc8"
+SRCREV = "e73ff0137de5152e69e8abb0bd260541804dfe5a"
 SRCBRANCH ?= "develop"
 
 SRC_URI += "file://fix_cflags_handling.patch"