build: Use AS_HELP_STRING macro to format the ./configure --help better

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>

diff --git a/configure.in b/configure.in
index e3e178c..140fdc2 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -35,22 +35,34 @@ dnl Generate the output
 AM_CONFIG_HEADER(config.h)
 
 AC_ARG_ENABLE(talloc,
-       [  --disable-talloc Disable building talloc memory allocator ],
+       [AS_HELP_STRING(
+               [--disable-talloc],
+               [Disable building talloc memory allocator]
+       )],
        [enable_talloc=0], [enable_talloc=1])
 AM_CONDITIONAL(ENABLE_TALLOC, test "x$enable_talloc" = "x1")
 
 AC_ARG_ENABLE(plugin,
-       [  --disable-plugin Disable support for dlopen plugins ],
+       [AS_HELP_STRING(
+               [--disable-plugin],
+               [Disable support for dlopen plugins],
+       )],
        [enable_plugin=0], [enable_plugin=1])
 AM_CONDITIONAL(ENABLE_PLUGIN, test "x$enable_plugin" = "x1")
 
 AC_ARG_ENABLE(tests,
-       [  --disable-tests Disable building test programs ],
+       [AS_HELP_STRING(
+               [--disable-tests],
+               [Disable building test programs]
+       )],
        [enable_tests=0], [enable_tests=1])
 AM_CONDITIONAL(ENABLE_TESTS, test "x$enable_tests" = "x1")
 
 AC_ARG_ENABLE(vty,
-       [  --disable-vty Disable building VTY telnet interface ],
+       [AS_HELP_STRING(
+               [--disable-vty],
+               [Disable building VTY telnet interface]
+       )],
        [enable_vty=0], [enable_vty=1])
 AM_CONDITIONAL(ENABLE_VTY, test "x$enable_vty" = "x1")