configure: fix typo in help text

Closes https://github.com/curl/curl/pull/4570

diff --git a/configure.ac b/configure.ac
index 2139f55a8420c52bbc7706f84c9669717c35b6f2..4bc4a9cbd910908ec08591f44cb6a2a03acd8954 100755 (executable)
--- a/configure.ac
+++ b/configure.ac
@@ -4400,7 +4400,7 @@ dnl
 AC_MSG_CHECKING([whether to support DNS shuffling])
 AC_ARG_ENABLE(dnsshuffle,
 AC_HELP_STRING([--enable-dnsshuffle],[Enable DNS shuffling])
-AC_HELP_STRING([--disable-dnsshuffle],[Disable DNS shufflinf]),
+AC_HELP_STRING([--disable-dnsshuffle],[Disable DNS shuffling]),
 [ case "$enableval" in
   no)
        AC_MSG_RESULT(no)