Clarify the default behavior of cargo-install.

Author: dimo414

src/doc/man/cargo-install.md

@@ -18,7 +18,7 @@ cargo-install --- Build and install a Rust binary
 This command manages Cargo's local set of installed binary crates. Only
 packages which have executable `[[bin]]` or `[[example]]` targets can be
 installed, and all executables are installed into the installation root's
-`bin` folder.
+`bin` folder. By default only binaries, not examples, are installed.
 
 {{> description-install-root }}
 
@@ -141,7 +141,7 @@ Install only the specified binary.
 {{/option}}
 
 {{#option "`--bins`" }}
-Install all binaries.
+Install all binaries. This is the default behavior.
 {{/option}}
 
 {{#option "`--example` _name_..." }}

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

@@ -13,7 +13,8 @@ DESCRIPTION
        This command manages Cargo’s local set of installed binary crates.
        Only packages which have executable [[bin]] or [[example]] targets can
        be installed, and all executables are installed into the installation
-       root’s bin folder.
+       root’s bin folder. By default only binaries, not examples, are
+       installed.
 
        The installation root is determined, in order of precedence:
 
@@ -137,7 +138,7 @@ OPTIONS
            Install only the specified binary.
 
        --bins
-           Install all binaries.
+           Install all binaries. This is the default behavior.
 
        --example name…
            Install only the specified example.

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

@@ -18,7 +18,7 @@ cargo-install --- Build and install a Rust binary
 This command manages Cargo's local set of installed binary crates. Only
 packages which have executable `[[bin]]` or `[[example]]` targets can be
 installed, and all executables are installed into the installation root's
-`bin` folder.
+`bin` folder. By default only binaries, not examples, are installed.
 
 The installation root is determined, in order of precedence:
 
@@ -150,7 +150,7 @@ same time.</dd>
 
 
 <dt class="option-term" id="option-cargo-install---bins"><a class="option-anchor" href="#option-cargo-install---bins"></a><code>--bins</code></dt>
-<dd class="option-desc">Install all binaries.</dd>
+<dd class="option-desc">Install all binaries. This is the default behavior.</dd>
 
 
 <dt class="option-term" id="option-cargo-install---example"><a class="option-anchor" href="#option-cargo-install---example"></a><code>--example</code> <em>name</em>…</dt>

src/etc/man/cargo-install.1

@@ -17,7 +17,7 @@ cargo\-install \[em] Build and install a Rust binary
 This command manages Cargo\[cq]s local set of installed binary crates. Only
 packages which have executable \fB[[bin]]\fR or \fB[[example]]\fR targets can be
 installed, and all executables are installed into the installation root\[cq]s
-\fBbin\fR folder.
+\fBbin\fR folder. By default only binaries, not examples, are installed.
 .sp
 The installation root is determined, in order of precedence:
 .sp
@@ -177,7 +177,7 @@ Install only the specified binary.
 .sp
 \fB\-\-bins\fR
 .RS 4
-Install all binaries.
+Install all binaries. This is the default behavior.
 .RE
 .sp
 \fB\-\-example\fR \fIname\fR\[u2026]