Add sha512 explicit algorithm to file extension
diff --git a/devel/bin/release_commands.pl b/devel/bin/release_commands.pl
index 91cdc5f..24c3266 100755
--- a/devel/bin/release_commands.pl
+++ b/devel/bin/release_commands.pl
@@ -118,7 +118,7 @@
     . qq|"<apache-lucy-$x_y_z_version.tar.gz" or die; |
     . qq|\$d->addfile(\$fh); print \$d->hexdigest; |
     . qq|print "  apache-lucy-$x_y_z_version.tar.gz\\n"' > |
-    . qq| apache-lucy-$x_y_z_version.tar.gz.sha\n|;
+    . qq| apache-lucy-$x_y_z_version.tar.gz.sha512\n|;
 
 say qq|# Sign the release.|;
 say qq|gpg --armor --output apache-lucy-$x_y_z_version.tar.gz.asc |
@@ -128,7 +128,7 @@
 say qq|svn add |
     . qq|apache-lucy-$x_y_z_version.tar.gz |
     . qq|apache-lucy-$x_y_z_version.tar.gz.md5 |
-    . qq|apache-lucy-$x_y_z_version.tar.gz.sha |
+    . qq|apache-lucy-$x_y_z_version.tar.gz.sha512 |
     . qq|apache-lucy-$x_y_z_version.tar.gz.asc |
     . qq|CHANGES-$x_y_z_version.txt |;
 say qq|svn ci -m "Add apache-lucy-$x_y_z_version artifacts"\n|;
@@ -173,8 +173,8 @@
     . qq|release/lucy/apache-lucy-$x_y_z_version.tar.gz |
     . qq|mv dev/lucy/apache-lucy-$full_rc_version/apache-lucy-$x_y_z_version.tar.gz.md5 |
     . qq|release/lucy/apache-lucy-$x_y_z_version.tar.gz.md5 |
-    . qq|mv dev/lucy/apache-lucy-$full_rc_version/apache-lucy-$x_y_z_version.tar.gz.sha |
-    . qq|release/lucy/apache-lucy-$x_y_z_version.tar.gz.sha |
+    . qq|mv dev/lucy/apache-lucy-$full_rc_version/apache-lucy-$x_y_z_version.tar.gz.sha512 |
+    . qq|release/lucy/apache-lucy-$x_y_z_version.tar.gz.sha512 |
     . qq|mv dev/lucy/apache-lucy-$full_rc_version/apache-lucy-$x_y_z_version.tar.gz.asc |
     . qq|release/lucy/apache-lucy-$x_y_z_version.tar.gz.asc |
     . qq|mv dev/lucy/apache-lucy-$full_rc_version/CHANGES-$x_y_z_version.txt |
@@ -191,7 +191,7 @@
         . qq|-U https://dist.apache.org/repos/dist/release/lucy/ |
         . qq|rm apache-lucy-$prev.tar.gz |
         . qq|rm apache-lucy-$prev.tar.gz.md5 |
-        . qq|rm apache-lucy-$prev.tar.gz.sha |
+        . qq|rm apache-lucy-$prev.tar.gz.sha512 |
         . qq|rm apache-lucy-$prev.tar.gz.asc |
         . qq|rm CHANGES-$prev.txt |;
 }