Only use the environment variable when it is not empty - noice - small file browser (mirror / fork from 2f30.org)
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       ---
 (DIR) commit 16109053f59a944f75b3aab947bccea103974759
 (DIR) parent b77477d3777bc6ebd43875cd3e9b68d44cdb1bd3
 (HTM) Author: sin <sin@2f30.org>
       Date:   Thu, 26 Nov 2015 15:10:12 +0000
       
       Only use the environment variable when it is not empty
       
       Diffstat:
         M noice.c                             |       2 +-
       
       1 file changed, 1 insertion(+), 1 deletion(-)
       ---
 (DIR) diff --git a/noice.c b/noice.c
       @@ -203,7 +203,7 @@ xgetenv(char *name, char *fallback)
                if (name == NULL)
                        return fallback;
                value = getenv(name);
       -        return value ? value : fallback;
       +        return value && value[0] ? value : fallback;
        }
        
        char *