- Fix Factory i586 build failure by stripping binaries earlier.

- Rework %go_prep again, use "shopt -s dotglob" to catch hidden files
- Change %go_requires to "Require: go >= %go_ver" instead of
"Require: go-devel = %go_ver". Go follows a stable release policy which
means patch-level updates are (supposed to be) compatible.

- Update to version 1.1.2:
+ includes fixes to the gc compiler and cgo, and the bufio, runtime, syscall,
and time packages. See the change history for details. If you use package
syscall's Getrlimit and Setrlimit functions under Linux on the ARM or 386
architectures, please note change 55ac276af5a7 that fixes issue 5949.
- Fix %go_prep again: Also move hidden files (.$BLA)

- Also set ExclusiveArch in %go_requires macro. Allows to drop
%go_exclusivearch again
- Fix %go_prep macro: Find directories in %_builddir based on Go
package name prefix (not exact match).

- Fix URL
- Add %go_exclusivearch macro. It's better to only specify ExclusiveArch
in the "go" package instead of all Go packages. Avoids errors once
Go becomes available on more architectures