Changed the step name for wait_for_any.py to include only one revision.

scripts/slave/recipes/bisect.expected/basic.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/bot_update.py",
       "--master",
       "tryserver.chromium.perf",
       "--builder",
       "linux_perf_bisect_builder",
@@ skipping 351 matching lines @@
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[auto_bisect]/resources/wait_for_any.py",
       "[DEPOT_TOOLS]/gsutil.py",
       "gs://chrome-perf/Linux Builder/full-build-linux_e28dc0d49c331def2a3bbf3ddd0096eb51551155.zip",
       "gs://chrome-perf/Linux Builder/full-build-linux_a6298e4afedbf2cd461755ea6f45b0ad64222222.zip"
     ],
-    "name": "Waiting for any of these revisions:306475 src@a6298e4afedbf2cd461755ea6f45b0ad64222222"
+    "name": "Waiting for revision: 306475 and 1 other revision(s)."
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "--force-version",
       "3.25",
@@ skipping 135 matching lines @@
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[auto_bisect]/resources/wait_for_any.py",
       "[DEPOT_TOOLS]/gsutil.py",
       "gs://chrome-perf/bisect-results/a6298e4afedbf2cd461755ea6f45b0ad64222222-test"
     ],
-    "name": "Waiting for any of these revisions:306475 src@a6298e4afedbf2cd461755ea6f45b0ad64222222 (2)"
+    "name": "Waiting for revision: 306475 and 1 other revision(s). (2)"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "--force-version",
       "3.25",
@@ skipping 198 matching lines @@
     "name": "Requesting build for 00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111 via git try."
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[auto_bisect]/resources/wait_for_any.py",
       "[DEPOT_TOOLS]/gsutil.py",
       "gs://chrome-perf/Linux Builder/full-build-linux_00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111.zip"
     ],
-    "name": "Waiting for any of these revisions:306477"
+    "name": "Waiting for revision: 306477"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "--force-version",
       "3.25",
@@ skipping 41 matching lines @@
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[auto_bisect]/resources/wait_for_any.py",
       "[DEPOT_TOOLS]/gsutil.py",
       "gs://chrome-perf/bisect-results/00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111-test"
     ],
-    "name": "Waiting for any of these revisions:306477 (2)"
+    "name": "Waiting for revision: 306477 (2)"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "--force-version",
       "3.25",
@@ skipping 125 matching lines @@
     "name": "Requesting build for fc6dfc7ff5b1073408499478969261b826441144 via git try."
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[auto_bisect]/resources/wait_for_any.py",
       "[DEPOT_TOOLS]/gsutil.py",
       "gs://chrome-perf/Linux Builder/full-build-linux_fc6dfc7ff5b1073408499478969261b826441144.zip"
     ],
-    "name": "Waiting for any of these revisions:306476"
+    "name": "Waiting for revision: 306476"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "--force-version",
       "3.25",
@@ skipping 41 matching lines @@
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[auto_bisect]/resources/wait_for_any.py",
       "[DEPOT_TOOLS]/gsutil.py",
       "gs://chrome-perf/bisect-results/fc6dfc7ff5b1073408499478969261b826441144-test"
     ],
-    "name": "Waiting for any of these revisions:306476 (2)"
+    "name": "Waiting for revision: 306476 (2)"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "--force-version",
       "3.25",
@@ skipping 46 matching lines @@
     "allow_subannotations": true,
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[auto_bisect]/resources/annotated_results.py"
     ],
     "name": "results",
     "stdin": "{\"header\": \"Succeeded.\", \"revisions\": [{\"std_err\": 10, \"culprit\": false, \"good_or_bad\": \"good\", \"mean_value\": 80, \"tested\": \"tested\", \"revision_string\": \"306475\", \"commit_pos\": 306475}, {\"std_err\": 2, \"culprit\": false, \"good_or_bad\": \"good\", \"mean_value\": 70, \"tested\": \"tested\", \"revision_string\": \"306476\", \"commit_pos\": 306476}, {\"std_err\": 1, \"culprit\": true, \"good_or_bad\": \"bad\", \"mean_value\": 15, \"tested\": \"tested\", \"revision_string\": \"306477\", \"commit_pos\": 306477}, {\"std_err\": 1, \"culprit\": false, \"good_or_bad\": \"bad\", \"mean_value\": 20, \"tested\": \"tested\", \"revision_string\": \"src@a6298e4afedbf2cd461755ea6f45b0ad64222222\", \"commit_pos\": 306478}]}"
   }
 ]