diagnose-build-failure spelling fix

Bug: 161807948
Test: OUT_DIR=../../out DIST_DIR=../../out/dist ./development/diagnose-build-failure/diagnose-build-failure.sh  --message "Wrong inputs to" dokkaKotlinTipOfTreeDocs # and see that it doesn't fail immediately
Change-Id: Id918e4586239b0aa077d6263684117b328f28cda
diff --git a/development/diagnose-build-failure/diagnose-build-failure.sh b/development/diagnose-build-failure/diagnose-build-failure.sh
index bce19c8..9d9dcae 100755
--- a/development/diagnose-build-failure/diagnose-build-failure.sh
+++ b/development/diagnose-build-failure/diagnose-build-failure.sh
@@ -93,7 +93,7 @@
   fi
 }
 
-function getBuildComand() {
+function getBuildCommand() {
   if [ "$expectedMessage" == "" ]; then
     testCommand="$*"
   else