shell/math: change ?: nesting code to not have 63 level nesting limitation

function                                             old     new   delta
evaluate_string                                     1406    1432     +26
arith                                                 36      29      -7
arith_apply                                          998     990      -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 26/-15)             Total: 11 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/shell/math.h b/shell/math.h
index 9812184f1..439031828 100644
--- a/shell/math.h
+++ b/shell/math.h
@@ -57,7 +57,7 @@ typedef const char* FAST_FUNC (*arith_var_lookup_t)(const char *name);
 typedef void        FAST_FUNC (*arith_var_set_t)(const char *name, const char *val);
 
 typedef struct arith_state_t {
-        uint64_t              evaluation_disabled;
+        unsigned              evaluation_disabled;
         const char           *errmsg;
         void                 *list_of_recursed_names;
         arith_var_lookup_t    lookupvar;