Add helpers to set libinfo without panic (#2724)

* add helpers to set library name and library info without risk of panic if we try to set both

* refactor code to use helpers

* add example

* refactor tests

* fix testable example

* simplify example

* rename exampl

* fix ring.go

* update example

---------

Co-authored-by: ofekshenawa <104765379+ofekshenawa@users.noreply.github.com>

command.go

@@ -5310,6 +5310,16 @@ type LibraryInfo struct {
 	LibVer  *string
 }
 
+// WithLibraryName returns a valid LibraryInfo with library name only.
+func WithLibraryName(libName string) LibraryInfo {
+	return LibraryInfo{LibName: &libName}
+}
+
+// WithLibraryVersion returns a valid LibraryInfo with library version only.
+func WithLibraryVersion(libVer string) LibraryInfo {
+	return LibraryInfo{LibVer: &libVer}
+}
+
 // -------------------------------------------
 
 type InfoCmd struct {