chore: change docstring line breaks (via synth)

synth.metadata

@@ -1,5 +1,5 @@
 {
-  "updateTime": "2020-02-20T22:58:23.288507Z",
+  "updateTime": "2020-02-21T13:13:45.283183Z",
   "sources": [
     {
       "generator": {
@@ -12,16 +12,16 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/python-billingbudgets.git",
-        "sha": "55b058007ab5ce68c6bcc10645e37a01bdbc5cbd"
+        "sha": "79279561f446c8e3469e8937142d0d28ca683099"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "3eaaaf8626ce5b0c0bc7eee05e143beffa373b01",
-        "internalRef": "296274723",
-        "log": "3eaaaf8626ce5b0c0bc7eee05e143beffa373b01\nAdd BUILD.bazel for v1 secretmanager.googleapis.com\n\nPiperOrigin-RevId: 296274723\n\ne76149c3d992337f85eeb45643106aacae7ede82\nMove securitycenter v1 to use generate from annotations.\n\nPiperOrigin-RevId: 296266862\n\n203740c78ac69ee07c3bf6be7408048751f618f8\nAdd StackdriverLoggingConfig field to Cloud Tasks v2 API.\n\nPiperOrigin-RevId: 296256388\n\ne4117d5e9ed8bbca28da4a60a94947ca51cb2083\nCreate a Bazel BUILD file for the google.actions.type export.\n\nPiperOrigin-RevId: 296212567\n\na9639a0a9854fd6e1be08bba1ac3897f4f16cb2f\nAdd secretmanager.googleapis.com v1 protos\n\nPiperOrigin-RevId: 295983266\n\n"
+        "sha": "e5bc9566ae057fb4c92f8b7e047f1c8958235b53",
+        "internalRef": "296357191",
+        "log": "e5bc9566ae057fb4c92f8b7e047f1c8958235b53\nDeprecate the endpoint_uris field, as it is unused.\n\nPiperOrigin-RevId: 296357191\n\n8c12e2b4dca94e12bff9f538bdac29524ff7ef7a\nUpdate Dataproc v1 client.\n\nPiperOrigin-RevId: 296336662\n\n17567c4a1ef0a9b50faa87024d66f8acbb561089\nRemoving erroneous comment, a la https://github.com/googleapis/java-speech/pull/103\n\nPiperOrigin-RevId: 296332968\n\n"
       }
     },
     {