Suppress errors during the check of Bazel version.

PiperOrigin-RevId: 162677739
diff --git a/configure b/configure
index b7bc87d..2886747 100755
--- a/configure
+++ b/configure
@@ -163,7 +163,9 @@
 
 
 bazel version > bazel.version
+set +e
 curr_bazel_version=$(grep -m 1 'Build label:' bazel.version | cut -d ' ' -f3)
+set -e
 rm -f bazel.version