commit ac57937d440566ec3d827362e0698e3e3ab23483
Author: Tim Burke <tim.burke@gmail.com>
Date:   Wed Jul 1 21:59:45 2020 -0700

    Update git submodules
    
    * Update liberasurecode from branch 'master'
      - Be willing to write fragments with legacy crc
    
        ...if users *really* want to. They opt-in at run time by setting
    
            LIBERASURECODE_WRITE_LEGACY_CRC=1
    
        in the environment; leaving it unset, set to an empty string, or set to
        the string "0" continues to write zlib crcs.
    
        UpgradeImpact
        =============
        This option is intended to allow a smooth upgrade from liberasurecode
        1.5.0 and earlier in a system with multiple readers and writers:
    
          * Before upgrade, ensure the environment variable is set on all nodes.
            This will be ignored by earlier versions.
          * Upgrade liberasurecode on each node in the system, restarting any
            services that use it. Every node continues writing CRCs that are
            still usable by nodes that have not yet upgraded.
          * Now that every node is capable of reading zlib CRCs, remove the
            environment variable from each node to start writing new CRCs.
    
        If you are already using 1.6.0 or later, just upgrade normally.
    
        Closes-Bug: #1886088
        Closes-Bug: #1867937
        Related-Bug: #1666320
        Needed-By: https://review.opendev.org/#/c/739164/
        Change-Id: I9adfbe631a2dddc592fd08f8a325f3e8331b92f1

diff --git a/liberasurecode b/liberasurecode
index fb13b37..5626cd5 160000
--- a/liberasurecode
+++ b/liberasurecode
@@ -1 +1 @@
-Subproject commit fb13b37506088aec05013dc05e7fc0e6aee49f09
+Subproject commit 5626cd5791bd35279594e067c10581e89ae66abc