Allow module names to be hyphenated in the --enable-mods-shared

argument.  Previously, we passed through a user-specified hyphen into
the name of the shell variable, yielding an invalid variable name.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88956 13f79535-47bb-0310-9956-ffa450edef68

acinclude.m4

@@ -372,6 +372,7 @@ AC_DEFUN(APACHE_ENABLE_MODULES,[
         module_selection=$i
         module_default=shared
       else
+        i=`echo $i | sed 's/-/_/g'`
     	eval "enable_$i=shared"
       fi
     done