Package: debhelper
Severity: normal

While comparing builds of musescore -6 and -7 I found unexpected
changes in the PNG files that are installed, they change the tIME
chunk to, apparently, the changelog time:

--- home/tg/Misc/Vendor/musescore/share/wallpaper/paper1.sng
+++ paper1.sng
@@ -6,13 +6,13 @@ IHDR {
 bKGD {red: 255;  green: 255;  blue: 255;}
 pHYs {xpixels: 3779; ypixels: 3779; per: meter;}  # (96 dpi)
 tIME {
-    # 10 Nov 2001 20:43:56 GMT
-    year:   2001
-    month:  11
-    day:    10
-    hour:   20
-    minute: 43
-    second: 56
+    # 24 Jun 2019 16:07:46 GMT
+    year:   2019
+    month:  6
+    day:    24
+    hour:   16
+    minute: 7
+    second: 46
 }
 IMAGE {
     pixels hex

While I’m sure the reproducible builds people appreciate
limiting the mtime, raising it is not done otherwise.

This also has potential to break applications (e.g. that
rely, in tests or otherwise, on the files).

-- System Information:
Debian Release: 10.0
  APT prefers buildd-unstable
  APT policy: (500, 'buildd-unstable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-5-amd64 (SMP w/1 CPU core)
Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C (charmap=UTF-8)
Shell: /bin/sh linked to /bin/lksh
Init: sysvinit (via /sbin/init)

Versions of packages debhelper depends on:
pn  autotools-dev            <none>
pn  dh-autoreconf            <none>
pn  dh-strip-nondeterminism  <none>
ii  dpkg                     1.19.7
pn  dpkg-dev                 <none>
pn  dwz                      <none>
ii  file                     1:5.35-4
pn  libdpkg-perl             <none>
ii  man-db                   2.8.5-2
ii  perl                     5.28.1-6
pn  po-debconf               <none>

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Versions of packages debhelper suggests:
pn  dh-make  <none>

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