Moved to google.golang.org/genproto/googleapis/api/annotations

Fixes #52

vendor/github.com/Masterminds/sprig/docs/defaults.md

@@ -0,0 +1,59 @@
+# Default Functions
+
+Sprig provides tools for setting default values for templates.
+
+## default
+
+To set a simple default value, use `default`:
+
+```
+default "foo" .Bar
+```
+
+In the above, if `.Bar` evaluates to a non-empty value, it will be used. But if
+it is empty, `foo` will be returned instead.
+
+The definition of "empty" depends on type:
+
+- Numeric: 0
+- String: ""
+- Lists: `[]`
+- Dicts: `{}`
+- Boolean: `false`
+- And always `nil` (aka null)
+
+For structs, there is no definition of empty, so a struct will never return the
+default.
+
+## empty
+
+The `empty` function returns `true` if the given value is considered empty, and
+`false` otherwise. The empty values are listed in the `default` section.
+
+```
+empty .Foo
+```
+
+Note that in Go template conditionals, emptiness is calculated for you. Thus,
+you rarely need `if empty .Foo`. Instead, just use `if .Foo`.
+
+## coalesce
+
+The `coalesce` function takes a list of values and returns the first non-empty
+one.
+
+```
+coalesce 0 1 2
+```
+
+The above returns `1`.
+
+This function is useful for scanning through multiple variables or values:
+
+```
+coalesce .name .parent.name "Matt"
+```
+
+The above will first check to see if `.name` is empty. If it is not, it will return
+that value. If it _is_ empty, `coalesce` will evaluate `.parent.name` for emptiness.
+Finally, if both `.name` and `.parent.name` are empty, it will return `Matt`.