docs(pkgid): Consistently use @

Fixes #11955

Author: epage

src/doc/man/cargo-pkgid.md

@@ -31,7 +31,7 @@ _name_`@`_version_         | `bitflags@1.0.4`
 _url_                      | `https://github.com/rust-lang/cargo`
 _url_`#`_version_          | `https://github.com/rust-lang/cargo#0.33.0`
 _url_`#`_name_             | `https://github.com/rust-lang/crates.io-index#bitflags`
-_url_`#`_name_`:`_version_ | `https://github.com/rust-lang/cargo#crates-io@0.21.0`
+_url_`#`_name_`@`_version_ | `https://github.com/rust-lang/cargo#crates-io@0.21.0`
 
 ## OPTIONS
 

src/doc/man/generated_txt/cargo-pkgid.txt

@@ -36,7 +36,7 @@ DESCRIPTION
        |                 | https://github.com/rust-lang/crates.io-index#bitflags |
        +-----------------+--------------------------------------------------+
        |                 |                                                  |
-       | url#name:version | https://github.com/rust-lang/cargo#crates-io@0.21.0 |
+       | url#name@version | https://github.com/rust-lang/cargo#crates-io@0.21.0 |
        +-----------------+--------------------------------------------------+
 
 OPTIONS

src/doc/src/commands/cargo-pkgid.md

@@ -31,7 +31,7 @@ _name_`@`_version_         | `bitflags@1.0.4`
 _url_                      | `https://github.com/rust-lang/cargo`
 _url_`#`_version_          | `https://github.com/rust-lang/cargo#0.33.0`
 _url_`#`_name_             | `https://github.com/rust-lang/crates.io-index#bitflags`
-_url_`#`_name_`:`_version_ | `https://github.com/rust-lang/cargo#crates-io@0.21.0`
+_url_`#`_name_`@`_version_ | `https://github.com/rust-lang/cargo#crates-io@0.21.0`
 
 ## OPTIONS
 

src/etc/man/cargo-pkgid.1

@@ -56,7 +56,7 @@ T}:T{
 \fBhttps://github.com/rust\-lang/crates.io\-index#bitflags\fR
 T}
 T{
-\fIurl\fR\fB#\fR\fIname\fR\fB:\fR\fIversion\fR
+\fIurl\fR\fB#\fR\fIname\fR\fB@\fR\fIversion\fR
 T}:T{
 \fBhttps://github.com/rust\-lang/cargo#crates\-io@0.21.0\fR
 T}