- stringinput: avoid an access out of bounds

ported from tuxbox-neutrino; thx to Gaucho316

src/gui/widget/stringinput.h

@@ -101,7 +101,7 @@ class CStringInputSMS : public CStringInput
 {
 		bool	capsMode;
 		int 	arraySizes[10];
-		char	Chars[10][9];					// maximal 9 character in one CharList entry!
+		char	Chars[10][10];					// maximal 10 character in one CharList entry!
 
 		int keyCounter;
 		int last_digit;