*/*: Add := to virtual/zlib deps

Add := to virtual/zlib deps, part 1

Done via:

```
git grep -l virtual/zlib$ | xargs sed -i -e 's@virtual/zlib$@&:=@'
```

Add := to virtual/zlib deps

Done via:

```
git grep -l 'virtual/zlib ' |
  xargs sed -i -e 's@virtual/zlib @virtual/zlib:= @g'
```

Unify virtual/zlib:0= to virtual/zlib:=

Done via:

```
git grep -l 'virtual/zlib:0=' |
  xargs sed -i -e 's@virtual/zlib:0=@virtual/zlib:=@g'
```

Add := to virtual/zlib deps, part 3

Done via:

```
git grep -l 'virtual/zlib:0' |
  xargs sed -i -e 's@virtual/zlib:0@virtual/zlib:=@g'
git grep -l 'virtual/zlib:=/' |
  xargs sed -i -e 's@virtual/zlib:=/@virtual/zlib:0/@g'
```

Add := to virtual/zlib deps, part 4

Done via:

```
git grep -l 'virtual/zlib\[' |
  xargs sed -i -e 's@virtual/zlib\[@virtual/zlib:=\[@g'
```

Use := on virtual/zlib deps, part 5

Done via:

```
git grep -l 'virtual/zlib-' |
  xargs sed -i -r -e 's@virtual/zlib-[0-9.]*(-r[0-9]*)?@&:=@g'
git grep -l 'virtual/zlib-' | xargs sed -i -e 's@:=:=@:=@g'
pkgcheck scan --commits \
  -c SourcingCheck,VisibilityCheck,DependencyCheck --exit error
```

Use := on virtual/zlib deps, part 6

Done via:

```
git grep -l 'virtual/zlib"' | xargs sed -i -e 's@virtual/zlib"@virtual/zlib:="@'
```

Signed-off-by: Paul Zander <negril.nx+gentoo@gmail.com>

dev-cpp/cpprestsdk/cpprestsdk-2.10.19-r5.ebuild

@@ -14,7 +14,7 @@ KEYWORDS="~amd64 ~x86"
 
 RDEPEND=">=dev-libs/openssl-1.1.1q
 		>=dev-libs/boost-1.80.0-r1
-		>=virtual/zlib-1.2.13-r1"
+		>=virtual/zlib-1.2.13-r1:="
 
 DEPEND="${RDEPEND}"
 

dev-cpp/cpprestsdk/cpprestsdk-2.10.19-r6.ebuild

@@ -14,7 +14,7 @@ KEYWORDS="~amd64 ~x86"
 
 RDEPEND=">=dev-libs/openssl-1.1.1q
 		>=dev-libs/boost-1.80.0-r1:=
-		>=virtual/zlib-1.2.13-r1"
+		>=virtual/zlib-1.2.13-r1:="
 
 DEPEND="${RDEPEND}"
 

dev-cpp/drogon/drogon-1.9.5.ebuild

@@ -24,7 +24,7 @@ RESTRICT="!test? ( test )"
 RDEPEND="
 	>=dev-cpp/trantor-${MY_TRANTOR_V}:=
 	dev-libs/jsoncpp:=
-	virtual/zlib
+	virtual/zlib:=
 	brotli? ( app-arch/brotli:= )
 	mariadb? ( dev-db/mariadb:= )
 	postgres? ( dev-db/postgresql:= )

dev-cpp/drogon/drogon-1.9.6.ebuild

@@ -24,7 +24,7 @@ RESTRICT="!test? ( test )"
 RDEPEND="
 	>=dev-cpp/trantor-${MY_TRANTOR_V}:=
 	dev-libs/jsoncpp:=
-	virtual/zlib
+	virtual/zlib:=
 	brotli? ( app-arch/brotli:= )
 	mariadb? ( dev-db/mariadb:= )
 	postgres? ( dev-db/postgresql:= )

dev-cpp/wt/wt-4.11.4-r3.ebuild

@@ -22,7 +22,7 @@ RESTRICT="test"
 
 DEPEND="
 	dev-libs/boost:=
-	virtual/zlib
+	virtual/zlib:=
 	graphicsmagick? ( media-gfx/graphicsmagick:=[jpeg,png] )
 	mysql? (
 		virtual/mysql

dev-cpp/wt/wt-4.12.0.ebuild

@@ -22,7 +22,7 @@ RESTRICT="test"
 
 DEPEND="
 	dev-libs/boost:=
-	virtual/zlib
+	virtual/zlib:=
 	graphicsmagick? ( media-gfx/graphicsmagick:=[jpeg,png] )
 	mysql? (
 		virtual/mysql

dev-cpp/wt/wt-4.12.1.ebuild

@@ -22,7 +22,7 @@ RESTRICT="test"
 
 DEPEND="
 	dev-libs/boost:=
-	virtual/zlib
+	virtual/zlib:=
 	graphicsmagick? ( media-gfx/graphicsmagick:=[jpeg,png] )
 	mysql? (
 		virtual/mysql