opencdk: corrected unsigned comparison

diff --git a/lib/opencdk/literal.c b/lib/opencdk/literal.c
index c47f360c5c0b1eeb63a3248e213c567547567a5e..7b4baec82f4805aeff08fe0ba8b6f4e98e8869e0 100644 (file)
--- a/lib/opencdk/literal.c
+++ b/lib/opencdk/literal.c
@@ -236,7 +236,7 @@ int _cdk_filter_literal(void *data, int ctl, FILE * in, FILE * out)
 static void _cdk_trim_string(char *s)
 {
        int len = strlen(s);
-       unsigned i;
+       int i;
 
        for (i=len-1;i>=0;i--) {
                if ((s[i] == '\t' || s[i] == '\r' || s[i] == '\n' || s[i] == ' ')) {