cmd/gofmt: unindent the second line of a BUG note
cmd/gofmt: unindent the second line of a BUG note

Currently, this second line is treated a pre-formatted text as it's
indented relatively to the BUG() line.

The current state can be seen at:

  https://golang.org/cmd/gofmt/#pkg-note-BUG

Unindenting makes the rest of the sentence part of the same paragraph.

Change-Id: I6dee55c9c321b1a03b41c7124c6a1ea15772c878
Reviewed-on: https://go-review.googlesource.com/38353
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

nawawi/go,golang/go,golang/go,CAFxX/go,ImJasonH/go,codestation/go,linux-on-ibm-z/go,codestation/go,josharian/go,codestation/go,derekmarcotte/go,codestation/go,josharian/go,polyverse-security/go,golang/go,ImJasonH/go,akutz/go,CAFxX/go,linux-on-ibm-z/go,derekmarcotte/go,nawawi/go,josharian/go,golang/go,Cofyc/go,golang/go,josharian/go,linux-on-ibm-z/go,polyverse-security/go,josharian/go,codestation/go,derekmarcotte/go,golang/go,cloudflare/go,polyverse-security/go,CAFxX/go,nawawi/go,vsekhar/elastic-go,ImJasonH/go,codestation/go,polyverse-security/go,akutz/go,CAFxX/go,linux-on-ibm-z/go,nawawi/go,golang/go,cloudflare/go,polyverse-security/go,akutz/go,polyverse-security/go,nawawi/go,cloudflare/go,ImJasonH/go,akutz/go,ImJasonH/go,Cofyc/go,nawawi/go,akutz/go,ImJasonH/go,vsekhar/elastic-go,Cofyc/go,vsekhar/elastic-go,Cofyc/go,ImJasonH/go,cloudflare/go,derekmarcotte/go,vsekhar/elastic-go,linux-on-ibm-z/go,CAFxX/go,vsekhar/elastic-go,vsekhar/elastic-go,akutz/go,vsekhar/elastic-go,cloudflare/go,ImJasonH/go,nawawi/go,polyverse-security/go,codestation/go,Cofyc/go,codestation/go,cloudflare/go,CAFxX/go,josharian/go,nawawi/go,cloudflare/go,derekmarcotte/go,linux-on-ibm-z/go,Cofyc/go,derekmarcotte/go,Cofyc/go,vsekhar/elastic-go,cloudflare/go,linux-on-ibm-z/go,derekmarcotte/go,christopher-henderson/Go,linux-on-ibm-z/go,CAFxX/go,akutz/go,Cofyc/go,josharian/go,CAFxX/go,polyverse-security/go,golang/go,derekmarcotte/go,josharian/go,akutz/go