build: avoid trailing whitespace in feature string

diff --git a/src/core/build.h b/src/core/build.h
index d5e55506cf3657571067b6de36b2edeac0cbdbec..24873ab9d7f31783f1d19ac0a1ae5d492c818573 100644 (file)
--- a/src/core/build.h
+++ b/src/core/build.h
@@ -154,4 +154,4 @@
         _BLKID_FEATURE_ " "                                             \
         _ELFUTILS_FEATURE_ " "                                          \
         _KMOD_FEATURE_ " "                                              \
-        _IDN_FEATURE_ " "
+        _IDN_FEATURE_