Fix last uninitialized warning.

clang is fine with the noreturn nature of error_exit, but only if we don't
`if (false)` it out for non-debug builds.

lib/args.c:304:18: error: variable 'temp' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized]
      } else if (CFG_TOYBOX_FLOAT && new->type == '.') {
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
external/toybox/generated/config.h:11:26: note: expanded from macro 'CFG_TOYBOX_FLOAT'
                         ^
external/toybox/lib/args.c:308:19: note: uninitialized use occurs here
      options = --temp;
                  ^~~~
external/toybox/lib/args.c:304:14: note: remove the 'if' if its condition is always true
      } else if (CFG_TOYBOX_FLOAT && new->type == '.') {
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
external/toybox/lib/args.c:255:15: note: initialize the variable 'temp' to silence this warning
    char *temp;
              ^
               = NULL

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/args.c b/lib/args.c
index 7b9350f8..5267ebe2 100644
--- a/lib/args.c
+++ b/lib/args.c
@@ -304,7 +304,7 @@ void parse_optflaglist(struct getoptflagstate *gof)
       } else if (CFG_TOYBOX_FLOAT && new->type == '.') {
         FLOAT f = strtod(++options, &temp);
         if (temp != options) new->val[idx].f = f;
-      } else if (CFG_TOYBOX_DEBUG) error_exit("<>= only after .#");
+      } else error_exit("<>= only after .#");
       options = --temp;
 
     // At this point, we've hit the end of the previous option.  The