maint: rewrap a long line noticed by make syntax-check

* configure.ac: Wrap the recently introduced long line.

diff --git a/configure.ac b/configure.ac
index 295802dc5fb866ad6e1e08c92bc4f1d8c27a3069..423cc962a2fb19d32e8b23cf621ca25962012072 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -99,7 +99,8 @@ AC_ARG_ENABLE([gcc-warnings],
    # certain sections of code.  So if this is available and
    # we're running from a git repo, then auto enable the warnings.
    gl_gcc_warnings=no
-   gl_GCC_VERSION_IFELSE([4], [6], [test -d "$srcdir"/.git && gl_gcc_warnings=yes])]
+   gl_GCC_VERSION_IFELSE([4], [6],
+                         [test -d "$srcdir"/.git && gl_gcc_warnings=yes])]
 )
 
 if test "$gl_gcc_warnings" = yes; then