Make netcat_flag_count() return positive value

C language has 3 distinct char types:
         char
         unsigned char
         signed char
A char has the same range of values as signed char on X86,
but same as unsigned char on PPC which made netcat_flag_count
return a negative value, now we force variable c as signed char
to make netcat_flag_count return positive value.

Upstream-Status: Pending

Signed-off-by: Roy.Li <rongqing.li@windriver.com>
---
 src/flagset.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/flagset.c b/src/flagset.c
index 442b634..54ac898 100644
--- a/src/flagset.c
+++ b/src/flagset.c
@@ -134,7 +134,7 @@ unsigned short netcat_flag_next(unsigned short port)
 
 int netcat_flag_count(void)
 {
-  register char c;
+  register signed char c;
   register int i;
   int ret = 0;
 
-- 
1.7.5.4