cmd/bench: replace benchmarks-50 with benchmarks-100

it's the same number of benchmarks, the name is just
more accurate now.

Change-Id: Icf80a1ceec4de935788d77e1307cb849f00cca2d
Reviewed-on: https://go-review.googlesource.com/c/benchmarks/+/808580
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>

cmd/bench/bent.go

diff --git a/cmd/bench/bent.go b/cmd/bench/bent.go
index 783de55..3a757bf 100644
--- a/cmd/bench/bent.go
+++ b/cmd/bench/bent.go
@@ -115,7 +115,7 @@
 	cmd = exec.Command(bentPath,
 		"-N", "10",
 		"-C", confFile,
-		"-B", filepath.Join(dir, "benchmarks-50.toml"),
+		"-B", filepath.Join(dir, "benchmarks-100.toml"),
 		"-report-build-time=false", // We only run builds once, which won't yield statistically significant results.
 		"-v",
 	)