PATCH: Fix ticket 1212

[Federico G. Schwindt]

 bin/varnishtest/tests/r01212.vtc |    9 +++++++++
 lib/libvcl/vcc_expr.c            |    1 +
 2 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/bin/varnishtest/tests/r01212.vtc b/bin/varnishtest/tests/r01212.vtc
new file mode 100644
index 0000000..b9d489c
--- /dev/null
+++ b/bin/varnishtest/tests/r01212.vtc
@@ -0,0 +1,9 @@
+varnishtest "#1212 - Vmod with HEADER argument given a STRING asserts the VCL compiler"
+
+varnish v1 -badvcl {
+	import std from "${topbuild}/lib/libvmod_std/.libs/libvmod_std.so" ;
+
+	sub vcl_recv {
+		std.collect("foo");
+	}
+}
diff --git a/lib/libvcl/vcc_expr.c b/lib/libvcl/vcc_expr.c
index 06f93ec..4b2390d 100644
--- a/lib/libvcl/vcc_expr.c
+++ b/lib/libvcl/vcc_expr.c
@@ -582,6 +582,7 @@ vcc_Eval_Func(struct vcc *tl, struct expr **e, const struct symbol *sym)
 				SkipToken(tl, ',');
 		} else if (fmt == HEADER) {
 			const struct var *v;
+			ExpectErr(tl, ID);
 			sym = VCC_FindSymbol(tl, tl->t, SYM_NONE);
 			ERRCHK(tl);
 			SkipToken(tl, ID);