[Minor] Rspamadm: Add zstd compression support to grep subcommand

diff --git a/lualib/rspamadm/grep.lua b/lualib/rspamadm/grep.lua
index b149a0337ec647280bdb98d4d9dfb01dbb1956d1..3b4a058ab1f7eabdf6dcb8d0905359def94f0e8e 100644 (file)
--- a/lualib/rspamadm/grep.lua
+++ b/lualib/rspamadm/grep.lua
@@ -90,6 +90,8 @@ local function handler(args)
       h, err = io.popen('bzcat ' .. n, 'r')
     elseif string.match(n, '%.gz$') then
       h, err = io.popen('zcat ' .. n, 'r')
+    elseif string.match(n, '%.zst$') then
+      h, err = io.popen('zstdcat ' .. n, 'r')
     elseif n == 'stdin' then
       h = io.input()
     else