Add fixes performance and static web server

tool/decode/lib/asmcodegen.c

@@ -43,6 +43,10 @@ nodiscard char *tabpad(const char *s, unsigned width) {
   need = width > l ? (roundup(width, 8) - l - 1) / 8 + 1 : 0;
   p = memcpy(malloc(l + need + 1), s, l);
   for (i = 0; i < need; ++i) p[l + i] = '\t';
+  if (!need) {
+    p[l] = ' ';
+    ++need;
+  }
   p[l + need] = '\0';
   return p;
 }

tool/decode/lib/zipnames.c

@@ -30,6 +30,7 @@ const struct IdName kZipCompressionNames[] = {
 const struct IdName kZipExtraNames[] = {
     {kZipExtraZip64, "kZipExtraZip64"},
     {kZipExtraNtfs, "kZipExtraNtfs"},
+    {kZipExtraExtendedTimestamp, "kZipExtraExtendedTimestamp"},
     {0, 0},
 };