Revert "upgrade: go version go115^"

54m · 54m · commit ab16466cb6a4 · 2022-06-15T17:57:27.000+09:00
This reverts commit 99ed036.
diff --git a/go.mod b/go.mod
@@ -1,5 +1,5 @@
 module github.com/gcp-kit/gcpen
 
-go 1.15
+go 1.13
 
 require google.golang.org/api v0.84.0

-Original file line number
+Diff line change
@@ @@ -1,5 +1,5 @@ @@
 module github.com/gcp-kit/gcpen
 -go 1.15
 +go 1.13
 require google.golang.org/api v0.84.0