Remove mentions of “home project” in documentation and output (#50527)

The concept of “home project” was removed in #36434.

Author: gbaraldi

doc/man/julia.1

@@ -67,7 +67,7 @@ Print uncommon options not shown by `-h`
 
 .TP
 --project[=<dir>/@.]
-Set <dir> as the home project/environment. The default @. option will search
+Set <dir> as the active project/environment. The default @. option will search
 through parent directories until a Project.toml or JuliaProject.toml file is
 found.
 

doc/src/manual/command-line-interface.md

@@ -95,7 +95,7 @@ The following is a complete list of command-line switches available when launchi
 |`-v`, `--version`                      |Display version information|
 |`-h`, `--help`                         |Print command-line options (this message).|
 |`--help-hidden`                        |Uncommon options not shown by `-h`|
-|`--project[={<dir>\|@.}]`              |Set `<dir>` as the home project/environment. The default `@.` option will search through parent directories until a `Project.toml` or `JuliaProject.toml` file is found.|
+|`--project[={<dir>\|@.}]`              |Set `<dir>` as the active project/environment. The default `@.` option will search through parent directories until a `Project.toml` or `JuliaProject.toml` file is found.|
 |`-J`, `--sysimage <file>`              |Start up with the given system image file|
 |`-H`, `--home <dir>`                   |Set location of `julia` executable|
 |`--startup-file={yes*\|no}`            |Load `JULIA_DEPOT_PATH/config/startup.jl`; if `JULIA_DEPOT_PATH` environment variable is unset, load `~/.julia/config/startup.jl`|

src/jloptions.c

@@ -102,7 +102,7 @@ static const char opts[]  =
     " --help-hidden              Uncommon options not shown by `-h`\n\n"
 
     // startup options
-    " --project[={<dir>|@.}]     Set <dir> as the home project/environment\n"
+    " --project[={<dir>|@.}]     Set <dir> as the active project/environment\n"
     " -J, --sysimage <file>      Start up with the given system image file\n"
     " -H, --home <dir>           Set location of `julia` executable\n"
     " --startup-file={yes*|no}   Load `JULIA_DEPOT_PATH/config/startup.jl`; if `JULIA_DEPOT_PATH`\n"