Flutter-Cherrypick-Process.md - Spell cherry-pick consistently (#172697)

https://dart.googlesource.com/external/github.com/flutter/flutter/+/454926a720621c9d9da2276ce24cc01a06e5d1ba

DEPS

diff --git a/DEPS b/DEPS
index 246d3a6..3e3a720 100644
--- a/DEPS
+++ b/DEPS
@@ -231,7 +231,7 @@
 deps = {
   'flutter/engine/src/flutter/third_party/dart': Var('dart_git') + '/sdk' + '@' + '3303e1d14063767e51d898a1d0a4ce5fd4560d0f',
 
-  'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + 'a738ae5c84adcf25f63c1ade5b958e7a4199fe62',
+  'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + '454926a720621c9d9da2276ce24cc01a06e5d1ba',
 
   'flutter/engine/src/flutter/third_party/depot_tools':
   Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '580b4ff3f5cd0dcaa2eacda28cefe0f45320e8f7',

commits.json

diff --git a/commits.json b/commits.json
index aa1f9bd..9298de6 100644
--- a/commits.json
+++ b/commits.json
@@ -1,4 +1,4 @@
 {
-  "flutter":"a738ae5c84adcf25f63c1ade5b958e7a4199fe62",
+  "flutter":"454926a720621c9d9da2276ce24cc01a06e5d1ba",
   "flutter/engine/src/flutter/third_party/dart":"3303e1d14063767e51d898a1d0a4ce5fd4560d0f"
 }
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