Fix crlf line endings

mark .icns files as binary so git will stop trying to fix the line
endings, and recommit the remaining .crlf files

.gitattributes

@@ -2,3 +2,4 @@
 .gitattributes export-ignore
 * text eol=lf
 *.png binary
+*.icns binary

manual tests/4 standalone binaries/myapp.iss

@@ -1,18 +1,18 @@
-; Innosetup file for My app.
-
-[Setup]
-AppName=My App
-AppVersion=1.0
-DefaultDirName={pf}\My App
-DefaultGroupName=My App
-UninstallDisplayIcon={app}\myapp.exe
-Compression=lzma2
-SolidCompression=yes
-OutputDir=.
-
-[Files]
-Source: "myapp.exe"; DestDir: "{app}"
-Source: "SDL2.dll"; DestDir: "{app}"
-
-;[Icons]
-;Name: "{group}\My App"; Filename: "{app}\myapp.exe"
+; Innosetup file for My app.
+
+[Setup]
+AppName=My App
+AppVersion=1.0
+DefaultDirName={pf}\My App
+DefaultGroupName=My App
+UninstallDisplayIcon={app}\myapp.exe
+Compression=lzma2
+SolidCompression=yes
+OutputDir=.
+
+[Files]
+Source: "myapp.exe"; DestDir: "{app}"
+Source: "SDL2.dll"; DestDir: "{app}"
+
+;[Icons]
+;Name: "{group}\My App"; Filename: "{app}\myapp.exe"