Disable lint rule prealloc

Signed-off-by: Dan Luhring <dan.luhring@anchore.com>

.golangci.yaml

@@ -31,7 +31,6 @@ linters:
     - misspell
     - nakedret
     - nolintlint
-    - prealloc
     - rowserrcheck
     - scopelint
     - staticcheck
@@ -55,5 +54,6 @@ linters:
 #    - lll         # without a way to specify per-line exception cases, this is not usable
 #    - maligned    # this is an excellent linter, but tricky to optimize and we are not sensitive to memory layout optimizations
 #    - nestif
+#    - prealloc    # following this rule isn't consistently a good idea, as it sometimes forces unnecessary allocations that result in less idiomatic code
 #    - testpackage
-#    - wsl
+#    - wsl

syft/source/mock_resolver.go

@@ -2,9 +2,10 @@ package source
 
 import (
 	"fmt"
-	"github.com/anchore/syft/internal/file"
 	"io/ioutil"
 	"os"
+
+	"github.com/anchore/syft/internal/file"
 )
 
 var _ Resolver = (*MockResolver)(nil)