gnu: audiofile: Shorten patch file names.

At least 'audiofile-division-by-zero-BlockCodec-runPull.patch' could end
up not being included in a tarball.

* gnu/packages/patches/audiofile-Check-the-number-of-coefficients.patch:
Rename to...
* gnu/packages/patches/audiofile-check-number-of-coefficients.patch:
... this.
* gnu/packages/patches/audiofile-division-by-zero-BlockCodec-runPull.patch:
Rename to...
* gnu/packages/patches/audiofile-division-by-zero.patch: ....this.
* gnu/packages/patches/audiofile-signature-of-multiplyCheckOverflow.patch:
Rename to...
* gnu/packages/patches/audiofile-function-signature.patch: ... this.
* gnu/packages/patches/audiofile-Fix-multiply-overflow-sfconvert.patch:
Rename to....
* gnu/packages/patches/audiofile-multiply-overflow.patch: ... this.
* gnu/packages/patches/audiofile-Fix-overflow-in-MSADPCM-decodeSam.patch:
Rename to...
* gnu/packages/patches/audiofile-overflow-in-MSADPCM.patch: ... this.
* gnu/packages/audio.scm (audiofile)[source]: Adjust accordingly.
* gnu/local.mk (dist_patch_DATA): Likewise.

gnu/local.mk

@@ -800,14 +800,14 @@ dist_patch_DATA =						\
   %D%/packages/patches/audiofile-CVE-2015-7747.patch		\
   %D%/packages/patches/audiofile-CVE-2018-13440.patch		\
   %D%/packages/patches/audiofile-CVE-2018-17095.patch		\
-  %D%/packages/patches/audiofile-Check-the-number-of-coefficients.patch \
+  %D%/packages/patches/audiofile-check-number-of-coefficients.patch \
   %D%/packages/patches/audiofile-Fail-on-error-in-parseFormat.patch \
   %D%/packages/patches/audiofile-Fix-index-overflow-in-IMA.cpp.patch \
-  %D%/packages/patches/audiofile-Fix-multiply-overflow-sfconvert.patch \
-  %D%/packages/patches/audiofile-Fix-overflow-in-MSADPCM-decodeSam.patch \
-  %D%/packages/patches/audiofile-division-by-zero-BlockCodec-runPull.patch \
+  %D%/packages/patches/audiofile-multiply-overflow.patch	\
+  %D%/packages/patches/audiofile-overflow-in-MSADPCM.patch	\
+  %D%/packages/patches/audiofile-division-by-zero.patch 	\
   %D%/packages/patches/audiofile-hurd.patch 			\
-  %D%/packages/patches/audiofile-signature-of-multiplyCheckOverflow.patch \
+  %D%/packages/patches/audiofile-function-signature.patch	\
   %D%/packages/patches/automake-skip-amhello-tests.patch	\
   %D%/packages/patches/avahi-localstatedir.patch		\
   %D%/packages/patches/avogadro-boost148.patch			\

gnu/packages/audio.scm

@@ -862,16 +862,16 @@ (define-public audiofile
          "audiofile-Fix-index-overflow-in-IMA.cpp.patch"
          ;; CVE-2017-6827, CVE-2017-6828, CVE-2017-6832, CVE-2017-6835,
          ;; CVE-2017-6837:
-         "audiofile-Check-the-number-of-coefficients.patch"
+         "audiofile-check-number-of-coefficients.patch"
          ;; CVE-2017-6839:
-         "audiofile-Fix-overflow-in-MSADPCM-decodeSam.patch"
+         "audiofile-overflow-in-MSADPCM.patch"
          ;; CVE-2017-6830, CVE-2017-6834, CVE-2017-6836, CVE-2017-6838:
-         "audiofile-Fix-multiply-overflow-sfconvert.patch"
-         "audiofile-signature-of-multiplyCheckOverflow.patch"
+         "audiofile-multiply-overflow.patch"
+         "audiofile-function-signature.patch"
          ;; CVE-2017-6831:
          "audiofile-Fail-on-error-in-parseFormat.patch"
          ;; CVE-2017-6833:
-         "audiofile-division-by-zero-BlockCodec-runPull.patch"
+         "audiofile-division-by-zero.patch"
          "audiofile-CVE-2018-13440.patch"
          "audiofile-CVE-2018-17095.patch"))))
     (properties `((lint-hidden-cve . ("CVE-2017-6829"