gnu: supercollider: Reformat package definition.

* gnu/packages/audio.scm (supercollider)[source]<origin>: Re-indent.
[arguments]<#:phases>: Remove trailing #T.

gnu/packages/audio.scm

@@ -2912,7 +2912,8 @@ background file post-processing.")
   (package
     (name "supercollider")
     (version "3.12.1")
-    (source (origin
+    (source
+     (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/supercollider/supercollider")
@@ -2943,8 +2944,7 @@ background file post-processing.")
              (("include\\(\\.\\./external_libraries/link/\
 AbletonLinkConfig\\.cmake\\)")
               "find_package(AbletonLink NAMES AbletonLink ableton-link \
-link REQUIRED)"))
-                  #t))))
+link REQUIRED)"))))))
     (build-system cmake-build-system)
     (outputs
      '("out"                            ;core language
@@ -2964,8 +2964,7 @@ link REQUIRED)"))
          ;; The graphical tests also hang without it.
          (add-after 'unpack 'set-home-directory
            (lambda _
-             (setenv "HOME" (getcwd))
-             #t))
+             (setenv "HOME" (getcwd))))
          (add-after 'unpack 'patch-scclass-dir
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
@@ -2976,13 +2975,11 @@ link REQUIRED)"))
                  (((string-append
                     "SC_Filesystem::instance\\(\\)\\.getDirectory"
                     "\\(DirName::Resource\\) / CLASS_LIB_DIR_NAME"))
-                  (string-append "Path(\"" scclass-dir "\")")))
-               #t)))
+                  (string-append "Path(\"" scclass-dir "\")"))))))
          (add-before 'build 'prepare-x
            (lambda _
              (system "Xvfb &")
-             (setenv "DISPLAY" ":0")
-             #t))
+             (setenv "DISPLAY" ":0")))
          (add-before 'install 'install-ide
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
@@ -2990,8 +2987,7 @@ link REQUIRED)"))
                     (scide "editors/sc-ide/scide"))
                (install-file scide
                              (string-append ide "/bin"))
-               (delete-file scide)
-               #t))))))
+               (delete-file scide)))))))
     (native-inputs
      (list ableton-link pkg-config qttools xorg-server-for-tests))
     (inputs (list jack-1