CLEANUP: Use `isttest()` and `istfree()`
This adjusts a few locations to make use of `isttest()` and `istfree()`.
diff --git a/src/http_htx.c b/src/http_htx.c
index 8157eb5..0e68695 100644
--- a/src/http_htx.c
+++ b/src/http_htx.c
@@ -111,7 +111,7 @@
if (blk) {
char *p;
- if (!ctx->value.ptr)
+ if (!isttest(ctx->value))
goto rescan_hdr;
if (full)
goto next_blk;
@@ -309,7 +309,7 @@
uri = htx_sl_req_uri(sl);
p = http_get_path(uri);
- if (!p.ptr)
+ if (!isttest(p))
p = uri;
while (plen < p.len && *(p.ptr + plen) != '?')
plen++;