printf: fix printing +-prefixed numbers

Thanks to Cristian Ionescu-Idbohrn for noticing.

Also fix "%d" '  42' to skip leading whitespace.

function                                             old     new   delta
print_direc                                          435     454     +19
bb_strtoll                                            99     103      +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 23/0)               Total: 23 bytes

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/libbb/bb_strtonum.c b/libbb/bb_strtonum.c
index 2185017b0..cb70f1053 100644
--- a/libbb/bb_strtonum.c
+++ b/libbb/bb_strtonum.c
@@ -81,7 +81,7 @@ long long FAST_FUNC bb_strtoll(const char *arg, char **endp, int base)
         /* Check for the weird "feature":
          * a "-" string is apparently a valid "number" for strto[u]l[l]!
          * It returns zero and errno is 0! :( */
-        first = (arg[0] != '-' ? arg[0] : arg[1]);
+        first = (arg[0] != '-' && arg[0] != '+' ? arg[0] : arg[1]);
         if (!isalnum(first)) return ret_ERANGE();
 
         errno = 0;