Revert "Revert some changes"

This reverts commit 64d64d5.

Author: LinusDierheimer

src/fastfetch.c

@@ -1447,7 +1447,7 @@ int main(int argc, const char** argv)
 
     //If we don't have a custom structure, use the default one
     if(data.structure.length == 0)
-        ffStrbufSetS(&data.structure, FASTFETCH_DATATEXT_STRUCTURE);
+        ffStrbufAppendS(&data.structure, FASTFETCH_DATATEXT_STRUCTURE);
 
     ffStart(&instance);
 

src/util/FFstrbuf.c

@@ -43,7 +43,7 @@ void ffStrbufEnsureFree(FFstrbuf* strbuf, uint32_t free)
 
     uint32_t allocate = strbuf->allocated;
     if(allocate < 2)
-        allocate = 2;
+        allocate = FASTFETCH_STRBUF_DEFAULT_ALLOC;
 
     while((strbuf->length + free + 1) > allocate) // + 1 for the null byte
         allocate *= 2;