mirror: don't remove src dir if it ends with a slash (fix #233)

src/MirrorJob.cc

@@ -1215,7 +1215,7 @@ int   MirrorJob::Do()
	 break;

      // all jobs finished.
      if(remove_source_dirs) {
      if(remove_source_dirs && source_dir.last_char()!='/') {
	 // remove source directory once.
	 remove_source_dirs=false;
	 if(script)

src/xstring.h

@@ -145,6 +145,7 @@ class xstring_c : public xstring0
   bool eq_nc(const char *s) const { return !xstrcasecmp(buf,s); }
   size_t length() const { return xstrlen(buf); }
   void set_length(size_t n) { if(buf) buf[n]=0; }
   char last_char() const { size_t len=length(); return len>0?buf[len-1]:0; }

   void unset() { xfree(buf); buf=0; }
   void _set(const char *s) { buf=xstrdup(s); }