sd-boot: fix trailing whitespace trimming

Fixes #10922.

diff --git a/src/boot/efi/boot.c b/src/boot/efi/boot.c
index d3a26fd..4719eea 100644 (file)
--- a/src/boot/efi/boot.c
+++ b/src/boot/efi/boot.c
@@ -981,7 +981,7 @@ skip:
         }
 
         /* remove trailing whitespace */
-        while (linelen > 0 && strchra(sep, line[linelen-1]))
+        while (linelen > 0 && strchra((CHAR8 *)" \t", line[linelen-1]))
                 linelen--;
         line[linelen] = '\0';