external_deps: reformat the help message

Reformat the help message.
Also simplify an overengineered madness.

Author: illwieckz

external_deps/build.sh

@@ -1472,62 +1472,62 @@ all_macos_platforms='macos-amd64-default'
 all_platforms="${all_linux_platforms} ${all_windows_platforms} ${all_macos_platforms}"
 
 errorHelp() {
-	sed -e 's/\\t/'$'\t''/g' <<-EOF
+	sed -e 's/\\t/\t/g' <<-EOF
 	usage: $(basename "${BASH_SOURCE[0]}") [OPTION] <PLATFORM> <PACKAGE[S]...>
 
 	Script to build dependencies for platforms which do not provide them
 
 	Options:
-	\t--download-only — only download source packages, do not build them
-	\t--prefer-ours — attempt to download from unvanquished.net first
+	\t--download-only\tonly download source packages, do not build them
+	\t--prefer-ours\tattempt to download from unvanquished.net first
 
 	Platforms:
 	\t${all_platforms}
 
 	Virtual platforms:
-	\tlinux — ${all_linux_platforms}
-	\twindows — ${all_windows_platforms}
-	\tmacos — ${all_macos_platforms}
-	\tall — linux windows macos
+	\tlinux\t${all_linux_platforms}
+	\twindows\t${all_windows_platforms}
+	\tmacos\t${all_macos_platforms}
+	\tall\tlinux windows macos
 
 	Packages:
 	\tpkgconfig nasm zlib gmp nettle curl sdl3 glew png jpeg webp openal ogg vorbis opus opusfile naclsdk wasisdk wasmtime
 
 	Virtual packages:
-	\tbase — build packages for pre-built binaries to be downloaded when building the game
-	\tall — build all supported packages that can possibly be involved in building the game
-	\tinstall — create a stripped down version of the built packages that CMake can use
-	\tpackage — create a zip/tarball of the dependencies so they can be distributed
-	\twipe — remove products of build process, excepting download cache but INCLUDING installed files. Must be last
+	\tbase\tbuild packages for pre-built binaries to be downloaded when building the game
+	\tall\tbuild all supported packages that can possibly be involved in building the game
+	\tinstall\tcreate a stripped down version of the built packages that CMake can use
+	\tpackage\tcreate a zip/tarball of the dependencies so they can be distributed
+	\twipe\tremove products of build process, excepting download cache but INCLUDING installed files. Must be last
 
 	Packages required for each platform:
 
 	windows-amd64-msvc:
 	windows-i686-msvc:
-	\tbase: ${base_windows_amd64_msvc_packages}
-	\tall: same
+	\tbase\t${base_windows_amd64_msvc_packages}
+	\tall\tsame
 
 	windows-amd64-mingw:
 	windows-i686-mingw:
-	\tbase: ${base_windows_amd64_mingw_packages}
-	\tall: same
+	\tbase\t${base_windows_amd64_mingw_packages}
+	\tall\tsame
 
 	macos-amd64-default:
-	\tbase: ${base_macos_amd64_default_packages}
-	\tall: same
+	\tbase\t${base_macos_amd64_default_packages}
+	\tall\tsame
 
 	linux-amd64-default:
-	\tbase: ${base_linux_amd64_default_packages}
-	\tall: ${all_linux_amd64_default_packages}
+	\tbase\t${base_linux_amd64_default_packages}
+	\tall\t${all_linux_amd64_default_packages}
 
 	linux-i686-default:
-	\tbase: ${base_linux_i686_default_packages}
-	\tall: ${all_linux_i686_default_packages}
+	\tbase\t${base_linux_i686_default_packages}
+	\tall\t${all_linux_i686_default_packages}
 
 	linux-arm64-default:
 	linux-armhf-default:
-	\tbase: ${base_linux_arm64_default_packages}
-	\tall: ${all_linux_arm64_default_packages}
+	\tbase\t${base_linux_arm64_default_packages}
+	\tall\t${all_linux_arm64_default_packages}
 
 	EOF
 	false