fix dying on empty slidefile - sent - simple plaintext presentation tool
 (HTM) git clone git://git.suckless.org/sent
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       ---
 (DIR) commit eac14478e949e29e442922d997f057573ddd9923
 (DIR) parent 996a4c5c6e7b98c9f3ef50846f567b5d6a2da932
 (HTM) Author: Markus Teich <markus.teich@stusta.mhn.de>
       Date:   Wed, 18 Nov 2015 23:24:53 +0100
       
       fix dying on empty slidefile
       
       Diffstat:
         M sent.c                              |       2 +-
       
       1 file changed, 1 insertion(+), 1 deletion(-)
       ---
 (DIR) diff --git a/sent.c b/sent.c
       @@ -685,7 +685,7 @@ int main(int argc, char *argv[])
                        }
                }
        
       -        if (!slides || !slides[0].lines)
       +        if (!slidecount)
                        usage();
        
                xinit();