s/-/_/g on repository names for newer Bazel

Change-Id: Ifc329f9913da2a97df5ab10fa288c7c2e7c1562d
diff --git a/debian/BUILD b/debian/BUILD
index 29c47d7..dc45621 100644
--- a/debian/BUILD
+++ b/debian/BUILD
@@ -5,7 +5,7 @@
 [ cc_library(
   name = libname,
   deps = cpu_select({
-    "roborio": ['@arm-frc-linux-gnueabi-repo//:' + libname],
+    "roborio": ['@arm_frc_linux_gnueabi_repo//:' + libname],
     "amd64": ['@usr_repo//:' + libname],
   }),
 ) for libname in ['libpthread', 'libm', 'libdl', 'librt']]