RichString: do not unnecessarily clean whole buffer

The local stack buffer does not need to be cleaned to zeros when
  - just initialized, cause the length is set to 0 and the first
    character is set to '\0', so all printing functions will safely stop
  - no further used, i.e. the variable goes out of scope

1 files changed, 1 insertions, 1 deletions

diff --git a/ProcessList.c b/ProcessList.c
index 7c12c7bf..37c40bcf 100644
--- a/ProcessList.c
+++ b/ProcessList.c
@@ -94,7 +94,7 @@ static const char* alignedProcessFieldTitle(ProcessField field) {
 }
 
 void ProcessList_printHeader(const ProcessList* this, RichString* header) {
-   RichString_prune(header);
+   RichString_rewind(header, RichString_size(header));
 
    const Settings* settings = this->settings;
    const ProcessField* fields = settings->fields;